FSG 56 Construction and Building Materials

Construction and Building Materials
Supply Items Included in Federal Supply Group 56
PLASTER,GYPSUM

A product of calcined, ground gypsum which may contain accelerators or retarders, as well as sand, fiber, and the like. It is used primarily for coating or forming large surfaces such as walls, ceilings, partitions, and the like. For items used for filling cracks, breaks, and indentations, see PLASTER, PATCHING, GYPSUM.

CEMENT,MASONRY

A blended material used instead of job cement-lime mixtures to reduce the number of materials handled and to improve the uniformity of the mortar. These cements are made by combining either natural or Portland cement with fattening materials such as hydrated lime.

CEMENT,PORTLAND

A finely pulverized product resulting from the calcination of an intimate artificial mixture of properly proportioned argillaceous and calcareous materials. When mixed with water, it hardens into a solid mass. It is used as an ingredient in mortar and concrete.

STONE,CRUSHED

Fragments of quarried rock obtained by crushing; most uses require screening to specified sizes. Washing may be necessary. Used as aggregate for concrete, as railroad ballast, in highway construction, sewage filter media, and the like. Specific uses are in part dependent on the chemical composition of the rock. In general, for construction purposes it consists of sound, tough, durable fragments free from too many flat, elongated, soft, or disintegrated pieces.

LIME,AIR SLAKED

A product containing various proportions of oxides, hydroxides, and carbonates of calcium and magnesium resulting from excessive exposure of quick lime to the air.

LIME,UNSLAKED

The product resulting from the calcination of limestone, dolomite, shells, or other forms of calcium carbonate, capable of slaking with water. It consists essentially of calcium oxide naturally associated with more or less magnesium oxide.

LIME,HYDRATED

A fine white powder produced by the action of water on unslaked lime. It consists essentially of calcium hydroxide naturally associated with more or less magnesium oxide or hydroxide.

ASPHALT,PETROLEUM

A brown to black bituminous residue, obtained artificially from certain petroleums, which is insoluble in water but soluble in lighter petroleum fractions. It includes items which are produced through further processing by fluxing or emulsifying, or by the addition of flux and filler, to form end products, such as cutbacks and emulsions used in road work, waterproofing, and dampproofing. It also includes roof coatings with or without pigments and/or fillers.

FILLER,EXPANSION JOINT,BITUMINOUS

COAL TAR

A black viscous liquid prepared from crude gashouse, coke-oven, and/or water-gas tars. It is designed for use for road construction for prime coat, surface treatment, seal coat, penetration, and repairing roofs or as an expansion joint filler. Excludes FILLER, EXPANSION JOINT, BITUMINOUS and PITCH, COAL TAR.

PITCH,COAL TAR

A black or dark-colored viscous substance obtained as a residue in distilling coal tar.

GRAVEL,WATER FILTER

SAND,CONSTRUCTION

A material used as an ingredient in cement or bituminous concrete, mortar, plaster, and the like. It is also used as a filler or grouting adjacent to brick, stone block, wood block pavements, or building construction. Excludes SAND, SANDBLAST and SAND, LITHOGRAPHIC GRAINING.

SAND,WATER FILTER

CEMENT,ALUMINATE

A blended material containing a high percentage of alumina and lime, together with iron oxide, silica, and magnesia. It may be used as an ingredient in concrete when great strength in a short setting period is desired; as a binder for refractory concrete aggregates; as a corrosion-resistant mortar and a corrosion-resistant refractory and insulating lining.

FLOOR FILLER COMPOUND,ASPHALTIC

A water dispersion of asphalts containing an emulsifier which when combined with other materials such as aluminate cement and sand in proper proportions, is used as a filler to level wood, concrete, and other surfaces prior to the installation of linoleum, asphalt tile, and other resilient floor covering.

DECK COVERING GROUTING POWDER

Terra cotta in powder form, which, when mixed with terazzo mix, liquid synthetic rubber latex, and liquid sealing coating, makes a mixture of troweling consistency used to form a latex mastic deck covering.

DECK COVERING RUBBER LATEX

Liquid synthetic rubber which is mixed with other material such as aggregate, terra cotta, and the like, to make a mixture capable of being troweled to form a latex mastic deck covering, or underlay for a latex mastic deck covering.

DECK COVERING SEALING COATING

A nonspecific material in liquid form, which, when mixed with terrazzo mix, liquid synthetic latex, and grouting powder, makes a mixture of troweling consistency used to form a latex mastic deck covering.

DECK COVERING TERRAZZO MIX

Small chips of terra cotta, which, when mixed with synthetic rubber latex, grouting powder, and liquid sealing coating, makes a mixture of troweling consistency used to form a latex mastic deck covering.

DECK COVERING UNDERLAY AGGREGATE

Chips of hard material, which, when mixed with synthetic rubber latex and underlay powder, makes a mixture of troweling consistency for the purpose of smoothing deck surfaces prior to the troweling of latex mastic deck covering materials or the laying of linoleum.

DECK COVERING UNDERLAY POWDER

A substance of nonspecific material, which, when mixed with synthetic rubber latex and aggregate, makes a mixture of troweling consistency for the purpose of smoothing deck surfaces prior to the troweling of latex mastic deck covering materials or the laying of linoleum.

CONCRETE GROUTING COMPOUND

A metallic aggregate combined with finely divided plasticizing material, calcium lignosulphate, cement dispersing agent and oxidizing catalyst. It is used as an additive to eliminate shrinkage in concrete mortar.

PLASTER,PATCHING,GYPSUM

A product whose principal ingredient is calcined, ground gypsum used for filling cracks, breaks, indentations, and the like in walls, ceilings, and other structural members. See also PLASTER, GYPSUM.

DECK AND FLOOR COVERING SURFACE COMPOUND

An item composed generally of completely apportioned aggregate and liquids (except for those which use tap water, the liquid is not included), which are mixed at the time of application to make a compound capable of being troweled to form a wearing and maintainable surface on floors and decks. See also COATING COMPOUND, NONSLIP.

DECK AND FLOOR COVERING UNDERLAY COMPOUND

An item composed generally of completely apportioned aggregates and liquids, which are mixed at the time of application to make a compound capable of being troweled to smooth surfaces of floors and decks before applying deck and floor covering surface materials. See also FLOOR FILLER COMPOUND, ASPHALTIC.

AGGREGATE,CONSTRUCTION

Any combination of sand, stone, slag, or gravel used in, or adjacent to, road or masonry construction wherein nominal size is not limited to that defined in Sand or Gravel.

TILE,CLAY

A precast unit usually rectangular in shape, consisting of surface clay, shale, fire clay, and/or mixtures of these materials exposed to burning processes. It is used in the construction of walls, partitions and/or fireproofing of structural members.

TILE,GYPSUM

A precast solid or hollow fireproof unit of various shapes, usually rectangular, which may be reinforced, used in construction of buildings as roof and floor decks, nonload bearing partitions, beam and girder covers, furring.

GLASS,SHEET

Clear, fire finished glass (gloss smooth) as drawn, having a slight wave across the sheet. It may be evenly processed (etched, sandblasted, and the like) (no discernible pattern) on one or both surfaces.

GLASS,PLATE

Glass having both surfaces ground to form parallel planes or parallel planes formed by flowing molten glass onto molten or semimolten metal. It may have an imbedded wire mesh and may be evenly processed (etched, sandblasted, and the like) (no discernible pattern), fire finished (glossy smooth), polished, or rough ground on one or both surfaces or any combination thereof.

GLASS,FIGURED

Glass having a figure or pattern on one or both surfaces. It may have an imbedded wire mesh and may be processed (etched, sandblasted, and the like), polished, and the like, on one or both surfaces or any combination thereof. Ribbed glass is considered to be figured glass. Corrugated glass, even if patterned, shall not be considered figured glass.

BLOCK,GLASS

A shaped hollow block composed of two pieces of molded glass joined with a binder, used in the construction of walls, panels, and sections of walls where light transmission is desired.

BRICK,BUILDING,COMMON

A rectangular shaped block made from clay or shale. It is individually molded and hardened by baking or burning by fire in a kiln. Its dimensions are usually 2 1/2 inches (63.5 mm) by 4 inches (101.6 mm) by 8 inches (203.2 mm). It is principally used in masonry construction. Excludes BRICK, BUILDING, CONCRETE; and BRICK, BUILDING, SAND-LIME.

TILE,FLOOR AND WALL,CERAMIC

CONCRETE MASONRY UNIT,CHANNEL

A precast concrete product, basically U-shaped, which is used with similar items in concrete masonry walls to retain the concrete and the reinforcing steel placed therein to form a beam.

CONCRETE MASONRY UNIT,HOLLOW

A precast concrete block, basically rectangular, with one or more cells extending vertically through the block. It is used in the construction of masonry walls.

BRICK,INSULATING,RADIATION SHIELD

An item formed of lead in various shapes. It may have grooves, protuberances, or interlocking features to form a close fitting shield or barrier between radioactive items or materials and persons in close proximity thereto. Excludes BRICK, INSULATING, HIGH TEMPERATURE.

BRICK,BUILDING,CONCRETE

A rectangular shaped block made from a mixture of Portland cement and suitable aggregates, such as sand, gravel, crushed stone, and the like. It has dimensions approximately equal to those of the common clay brick and is used in masonry construction. Excludes BRICK, BUILDING, COMMON; and BRICK, BUILDING, SAND-LIME.

BRICK,BUILDING,SAND-LIME

A rectangular shaped block made essentially of silica sand, slaked lime, and water. The mix is molded by pressure and hardened by exposure to steam. It has dimensions approximately equal to those of the common clay brick and is principally used in masonry construction. Excludes BRICK, BUILDING, COMMON; and BRICK, BUILDING, CONCRETE.

GLASS,CORRUGATED

Glass shaped into straight, parallel, regular, and equally curved ridges and hollows. It may be patterned on one or both surfaces. It may have an imbedded wire mesh and may be processed (etched, sandblasted, and the like), polished, and the like, on one or both surfaces or any combination thereof. Ribbed glass shall not be considered corrugated glass. See GLASS, FIGURED.

GLASS,SPANDREL

A special purpose plate glass having both surfaces ground to form parallel planes. It may be evenly processed (etched, sandblasted, and the like) (no discernible pattern), polished or remain rough ground on one or both surfaces or any combination thereof. One surface has a fire fused color which may have a backing material.

STRIP,METAL

A ferrous or nonferrous product with corss-sectional dimensions limited to those established in Appendix C, FIIG A131. Includes corrugated and perforated items. For silver strips see SILVER SHEET.

PIPE,CONCRETE

A hollow concrete cylinder, with or without steel reinforcement, usually used to convey liquids.

BEND,CONCRETE PIPE

A concrete pipe fitting used to connect two sections of concrete pipe to form an angular turn.

TEE,CONCRETE PIPE

A concrete pipe fitting having three connections, the branch of which is fixed at 90 degrees to the run. The item may have side inlets.

COUPLING,ASBESTOS CEMENT,PRESSURE PIPE

A straight one-piece fitting used to connect two lengths of asbestos cement pipe and/or pipe fittings which are to be laid in a straight line. It must have female end connections of the same type and size on both ends, and must have only two outlets. It may be furnished with or without rubber rings.

PIPE,BITUMINIZED FIBER

A tubular product formed from bituminous compound reinforced by an interwoven fibrous structure. Used for the purpose of draining sewage or venting.

COUPLING,BITUMINIZED FIBER PIPE

A straight one piece fitting used to connect two lengths of bituminized fiber pipe and/or bituminized fiber pipe fittings. It must have female end connections of the same type and size on both ends and must have two outlets only.

REDUCER,BITUMINIZED FIBER PIPE

A straight bituminized fiber fitting, used for connecting together, in the same line, two bituminized fiber pipes and/or fittings of different sizes.

ADAPTER,BITUMINIZED FIBER PIPE TO SOIL PIPE

An adapter designed to join bituminized fiber pipe to soil pipe and/or fittings; must be straight and have two types of connections.

BEND,BITUMINIZED FIBER PIPE

A bituminized fiber or cast iron fitting used to connect two sections of bituminized fiber pipe to form an angular turn.

LATERAL,CLAY PIPE

A clay pipe fitting having three connections, the branch of which is fixed at various angles other than 90 degrees (1.5705 radians) to the run, permitting lines to be taken off laterally from the main line.

TEE,CLAY PIPE

A type of clay pipe fitting having three connections, the branch of which is fixed 90 degrees to the run.

ELBOW,CLAY PIPE

A type of clay pipe fitting used to connect two sections of clay pipe and/or fittings to form an angle.

PIPE,CLAY

A hollow cylinder fabricated from surface clay, fire clay, shale, or a mixture of these materials. It is used for the conveyance of sewage, storm water and various liquids.

INCREASER,CLAY PIPE

A straight clay pipe fitting having a socket on the smaller end. It is used to connect two pieces of clay pipe, and/or fittings, of different size.

INCREASER,CONCRETE PIPE

A straight concrete pipe fitting having a bell end on the small end. It is used to connect two pieces of concrete pipe, and/or fittings, of different size.

PIPE,ASBESTOS AND CEMENT

A tubular product formed primarily from a mixture of portland cement and asbestos. It is used in drainage systems, vent systems, or supply lines.

SHEATHING,GYPSUM

A rectangular sheet, or board, having an incombustible core of gypsum, encased in specially treated water-repellent heavy building paper.

WALLBOARD,GYPSUM

A rectangular sheet, or board, having an incombustible core of gypsum, usually encased in heavy paper or other fibrous material, and used as a finished surface for walls and ceilings.

LATH,GYPSUM

A rectangular sheet or board, having an incombustible core of gypsum, usually surfaced with heavy paper or other fibrous material and designed to be used as a base for plaster.

CORK,GRANULATED

Loose granules in various sizes produced from ground outer bark of the cork oak tree. Used for loose fill heat or sound insulation, and as dry filler pigment to prevent sweating of painted surfaces.

CORK SHEET

A sheet of natural bark or a sheet of rolled or comppressed granulated cork having a cork gum, gelatin, or phenolic resin binder. It may include a fabric or other interliner. Cross-sectional sizes are limited to thicknesses of 1 inch (25.4 mm) or less and widths of over 6 inches (152.4 mm). See also CORK AND RUBBER SHEET; CORK STRIP; and CORK AND RUBBER STRIP. Excludes INSULATION BLANKET, THERMAL; and INSULATION BOARD, THERMAL.

BUILDING BOARD,HARD PRESSED,VEGETABLE FIBER

A rectangular shaped board of wood or other vegetable fibers of heavy density and square edges. The surfaces of the board may be smooth, tile scored, embossed, or painted.

BUILDING PAPER,VEGETABLE FIBER

A single or multiple ply of vegetable fiber material composed of paper, with or without felt or with or without metal backing, used in construction. It may be combined or treated with asphalt or an equal agent for water resistance.

INSULATION,THERMAL

A loose mass of glass wool, mineral wool, vegetable fibers, or diatomaceous earth as originally processed without regard to form or dimensions, primarily designed as loose fill for offering resistance to the flow of heat. Do not use if a more specific item name exists. Excludes electrical insulating compounds and CORK STRIP.

CEMENT,ASBESTOS

A dry material composed of asbestos fibers (usually 60 to 85 percent), fillers, and a binder, which when mixed with a suitable portion of water, dries hard and serves as insulation.

PAPER,ASBESTOS

An item composed of asbestos fibers and a bond agent processed into either smooth or corrugated sheets over 6 inches (152.4 mm) wide. It may be fortified with cotton netting. It is normally used as a thermal insulation. Excludes ASBESTOS SHEET, COMPRESSED.

INSULATION SLEEVING,THERMAL

A rigid or flexible item composed of one or more materials, having uniform inside and outside diameters in the entire length. It may be furnished in segments or split-round or full-round sections, composed of one or more layers. It is specifically designed to cover pipe, tubing, and like surfaces, to restrict the transfer of heat from the high temperature surface to the low temperature surface. It may also include protective coatings, jackets, attaching cement, attaching bands, and/or accessories, (excluding prefabricated components used in aircraft applications).Excludes INSULATION PIPE COVERING, THERMAL, AIRCRAFT.

WEATHER STRIP

A strip of material, or combination of materials used to cover or seal the joint of a door, window with sill, casing, or threshold to prevent the entrance of dust, rain, or drafts. Excludes NONMETALLIC ANGLE; NONMETALLIC CHANNEL; and NONMETALLIC SPECIAL SHAPED SECTION.

CLOTH,ASBESTOS

A woven fabric over 12 inches (304.8 mm) wide, principally of asbestos fibers, forming a soft flexible textile of various weaves. It is normally used as a thermal insulation. Excludes ASBESTOS SHEET, WOVEN.

INSULATION BLOCK,THERMAL

A rigid item designed to provide low thermal conductivity. It is composed of one or more kinds of granules and/or fiber with binder added, and has no specific surface perforations, fissures, slots or the like. It is supplied in lengths up to and including 36 inches (914.4 mm). For longer items, see INSULATION BOARD, THERMAL. Excludes BUILDING BOARD (as modified); MILLBOARD, ASBESTOS; ASBESTOS SHEET, COMPRESSED; CORK SHEET; CORK AND RUBBER SHEET; and FIBERBOARD (as modified). See also INSULATION BLANKET, THERMAL.

INSULATION BOARD,THERMAL

An item identical in construction to INSULATION BLOCK, THERMAL except that it is supplied in lengths greater than 36 inches (914.4 mm). Excludes BUILDING BOARD (as modified). MILLBOARD, ASBESTOS; ASBESTOS SHEET, COMPRESSED; CORK SHEET; CORK AND RUBBERSHEET; and FIBERBOARD (as modified). See also INSULATION BLANKET, THERMAL.

INSULATION BLANKET,THERMAL

A flexible material composed of one or more kinds of fiber, with or without binder added, supplied in flat sheets or rolls. It may have a vapor barrier or reinforcing material such as paper, woven wire or other sheet material affixed to one or both sides. It is designed to provide resistance to the flow of heat, and must be rated for this use. Excludes insulation components prefabricated into definite shapes and sizes used in aircraft applications. Excludes INSULATION BLANKET,THERMAL,AIRCRAFT.

INSULATION TAPE,THERMAL

A material 12 inches (304.8 mm) or less in width consisting of a jacket woven of asbestos or other heat resisting fibers filled with fibers of INSULATION, THERMAL. It is normally used for wrapping high temperature pipes. For materials 12 inches (304.8 mm) or less in width, not of filled jacket construction, see TAPE, TEXTILE; ASBESTOS STRIP, WOVEN; and ASBESTOS STRIP, COMPRESSED.

CEMENT,INSULATION,HIGH TEMPERATURE

A mixture of refractory material (diatomaceous earth, exfoliated mica, rock or mineral wool etc.), asbestos fibers, and clay binder used for insulating high temperature work, piping, tanks, and general use.

TAPE,JOINT,WALLBOARD

An item not exceeding two inches (50.8 mm) in width, used to cover the joints between adjacent sections of wallboard. See also TAPE, GUMMED; TAPE, PRESSURE SENSITIVE ADHESIVE.

SOUND CONTROLLING BLOCK

A light, rigid item composed of one or more kinds of granule and/or fiber with binder added, compressed to the desired density, and dried. It may be with or without surface coating and/or perforations or voids to be exposed to the noise area to entrap and dissipate sound energy, and is rated for this use. It is provided in lengths up to and including 36 inches (914.4 mm).

SOUND CONTROLLING BOARD

A light, rigid item composed of one or more kinds of granule and/or fiber with binder added, compressed to the desired density, and dried. It may be with or without surface coating and/or perforations or voids to be exposed to the noise area to entrap and dissipate sound energy, and is rated for this use. It is provided in lengths greater than 36 inches (914.4 mm).

SOUND CONTROLLING FELT

A flexible or semirigid material composed of one or more kinds of fiber with an added binder, manufactured in flat sheets or rolls. It is designed to entrap and dissipate sound energy, and must be rated for this use.

SOUND CONTROLLING BLANKET

A material composed of one or more kinds of fiber, with or without binder added, reinforced on one or both sides with various confining media suitably bound thereto. It is designed to entrap and dissipate sound energy, and must be rated for this use. See also INSULATION BLANKET, CABIN, AIRCRAFT.

MILLBOARD,ASBESTOS

A building and industrial board consisting of asbestos fibers and binder compressed into sheets and these sheets sized with vegetable fiber. This board has neither a thermal conductivity nor a sound absorbing rating. It is used where primary importance is attached to the characteristics; fire retardency, resistance to acids, and resistance to high temperature failure. Excludes INSULATION BOARD, THERMAL.

INSULATION FELT,THERMAL

A flexible or semirigid material composed of one or more kinds of fiber with an added binder, supplied in flat sheets or rolls. It is designed to offer resistance to the flow of heat, and must be rated for this use. For felted insulation with paper or other sheet material affixed to one or both sides, see INSULATION BLANKET, THERMAL. Excludes FELT SHEET and FELT STRIP.

SOUND CONTROLLING BATT

A material composed of one or more kinds of fiber without binder added, manufactured in flat sheets or rolls. It is designed to entrap and dissipate sound energy, and must be rated for this use.

BUILDING BOARD,ASBESTOS-CEMENT

An item made of asbestos fiber and cement formed into a flat sheet(s) or a corrugated sheet(s) under great pressure. It possesses structural efficiency withstanding the destructive action common in chemical and metallurgical processes.

INSULATION PIPE FITTING COVERING,THERMAL

An item composed of one or more materials, molded, compressed and/or baked into a rigid covering of the proper shape and size for various standard pipe or tube fittings. It is specifically designed to restrict the transfer of heat or protect from low or high temperatures. The molds are cut in half lengthwise and may be furnished with protective coatings, jackets, attaching bands, and/or accessories for application, (excluding prefabricated components used in aircraft applications). Excludes INSULATION PIPE COVERING, THERMAL, AIRCRAFT.

JOINT COMPOUND,WALLBOARD

A compound designed for embedding joint reinforcing tape, filling, and concealing joints on gypsum wallboard. For interior use only. Not designed for use on wood or wood fibre products. Excludes PLASTER, PATCHING, GYPSUM.

INSULATION OUTFIT,BUILDING

A group of items consisting of thermal insulation blankets, stapler, staples, tape, and the like required for insulating walls and ceilings of structures.

WALLPAPER

A surface finish covering of paper or material(s) of general likeness in roll or sheet form for walls and ceilings, and/or paper hangings. It may be coated (protective/decorative) on the face side, with or without adhesive properties on the opposite side.

PANEL,CEILING

A flat rigid or semi-rigid item, square or rectangular in shape, used to form the overhead inside lining of a room. The item may be rated for thermal insulation value and/or sound control and may have various surface patterns. For items designed specifically for insulation or sound control see INSULATION BLOCK, THERMAL or INSULATION BOARD, THERMAL and SOUND CONTROLLING BLOCK or SOUND CONTROLLING BOARD. Excludes PANEL, STRUCTURAL.

SOUND CONTROLLING PANEL

Consists of a rigid, box shaped outer panel, sound controlling batt, sound controlling board and/or sound controlling block. It may be with or without surface coating and/or perforations or voids to be exposed to the noise area to entrap and dissipate sound energy.

FIBER,CERAMIC

A loose mass of fine fibers composed principally of an aluminum-silicate composition designed to enhance the thermal resistance capability of various other materials.

TAPE,DUCT

A narrow strip of aluminum foil, plastic, cloth, or similar material, six inches (152.4 mm) or less in width. Generally in roll form with or without liner, designed to be affixed to an object by adhesion. It is used to cover pipe and similar objects. Under normal atmospheric conditions, it tends to resist any physical change. It may have a temerature rating and tensile strength. It does not contain coding signification, legendary characters, or printed data of any type. excludes: TAPE, PRESSURE SENSITIVE ADHESIVE; TAPE, INSULATION, ELECTRICAL; TAPE, ADHESIVE, RUBBER; TAPE, SEMI-CONDUCTING, ELECTRICAL; and TAPE, SHIELDING, ELECTRICAL.

PANEL,PERFORATED

A flat item having perforations which allow the mounting of PERFORATED PANEL ACCESSORY. The design of the item allows for storage or displaying various types of equipment such as tools, and the like.

LOUVERED PANEL ASSEMBLY

An item consisting of a panel usually metallic equipped with louvers and two or more accessories such as bins, and the like. It is designed for storage or displaying various equipment such as mounting hardware, and the like.

SHINGLE,WOOD

A piece of wood sawed with one end thinner than the other, or rived thin or small, for covering roofs and other exterior surfaces.

ROOFING FELT

A material composed of organic, asbestos, or glass fiber felt, saturated with bituminous compound. It is designed for use as roofing or flashing material and/or temporary general surfacing. Excludes BUILDING PAPER, VEGETABLE FIBER.

SHINGLE,ASBESTOS CEMENT

An item composed of asbestos fiber and portland cement. It is either of uniform thickness or tapered in thickness from butt to head, and may be rectangular, square, or irregular in shape. It is designed for the covering of roofs and the exterior sides of buildings. Excludes asbestos cement clapboard.

SHINGLE,ORGANIC FIBER,ASPHALT

ROOFING METAL

A relatively thin nonferrous product, smooth or corrugated in form, coated or protected on one or both sides with an asbestos and/or asphalt compound or the like. It is primarily designed for use as a permanent roofing or general surfacing material. Excludes steel sheet items.

FENCING,WIRE

A fabricated material made by joining together individual or twisted wires, so as to form meshes or openings between wires. The meshes are held secure by twisting, or by wrapping the overlapping strands with a short piece of additional wire. Wire fencing is used with supporting members in the construction of inclosures.

BARBED WIRE

Single wire with barbs welded on it, or two wires twisted helically around each other, with two or four point flat, half round, or round pointed wires, known as barbs, twisted around one or both wires and spaced at equal intervals along the wire or wires.

FENCING,WIRE AND WOODEN PICKET

An item fabricated of wooden pickets which are evenly spaced and held in place by twisted wires. It is used primarily to ward off snow drifts; also used for the protection of voung trees and shrubbery.

POST,FENCE,METAL

A metallic support having an angular, cylindrical, U, or T cross-sectional shape, the penetrating end of which may be formed into a point. The shank may have punched holes, slots, backbone, integral punched hooks, or other means for wire engagement. It is usually used to provide framework for erecting wire entanglements or fencing. Includes posts of this type used to support road markers and/or signs.

POST,SCREW,METAL

A metallic item, round in cross section, one end of which is formed into a helical screw with a pointed tip, the shank section being formed into one or more eyes terminating in a point. It is used to support wire to provide framework for erecting wire entanglements or fencing. Excludes ANCHOR, GUY.

BARBED WIRE,CONCERTINA

An entanglement of coiled barbed wire which can be pushed into a compact mass for transporting, and extended for use as an obstacle.

RAIL END

An item specifically designed to be used as an end fitting on rails and/or rail braces that rest on the structural supports of a fence.

CAP,POST

An end fitting designed to be attached to the top of a fence post to prevent debris and moisture from collecting in the post. Item may have a loop top for attaching a top rail to a line post. Includes items designed for decorative railings and the like.

ARM EXTENSION,FENCING

A device designed to position and/or support additional strand(s) of wire to a structure, such as a CAP, POST wall or the like. It may be designed to include an integral CAP, POST.

GATE,FENCE

A movable barrier that closes or opens a passageway for easy access through a fence. Constructed of an open framework or a solid structure of wood or metal with single or double openings. May be hung from hinges attached to gate post(s) for easy swing motion or roller type for slide motion; operated manually or automatic.

POST,SHELTER

Wooden or metallic items specially designed to support a shelter, to adjust height, or to support a section. The item may or may not have holes, wire, rope or provisions for attaching fittings. Includes corner posts, center posts, and the like.

BARBED WIRE SET,CONCERTINA

Barrier assets consisting of at least two BARBED WIRE, CONCERTINA.

BARBED TAPE,CONCERTINA

An entanglement of coiled preformed spring wire with serrated steel metal tape continuously clinched around the wire. The concertina is compressed into a compact coil for handling and extended for use as an obstacle.

BOLLARD,TRAFFIC CONTROL

A hardened barrier system fixed or automated used to control traffic-sensitive areas and or to protect critical-asset settings such as military, governmental and other buildings or compounds of higher security levels.

CAP,RIDGE

A shaped piece of metal used to cover the ridge of a roof for weatherproofing purposes.

DOOR,METAL,SWINGING

A movable metal barrier, designed to close passageways by a swinging action, whereby security against fire, intrusion or theft and/or elements is provided. When open, it affords access or egress. For vehicular components see DOOR, VEHICULAR; DOOR, HATCH, VEHICLE; DOOR, AIRCRAFT; DOOR, METAL, MARINE, STRUCTURAL.

WINDOW,METAL

A metal frame with integral crossbars, or a fixed or movable metal sash, used to close an opening in the wall of a building or watercraft and to admit light and/or air. It may be glazed. Excludes WINDOW, MARINE&#59; WINDOW, VEHICULAR and PORTLIGHT.

MOLDING,METAL

A shaped piece of metal having a plane or curved surface, either sunk or projecting, used for ornamental or other application.

CAP,EAVE TROUGH,METAL

A shaped piece of sheet metal, basically half-round or rectangular in cross-sectional form, used to close the end of an eave trough at the extremity of an eave gutter for rain water.

TROUGH,EAVE,METAL

A shaped piece of sheet metal, basically half-round or rectangular in cross-sectional form, used to form a gutter for rain water by attachment to the lower protecting edges, or eaves, of a roof.

DOOR,METAL,SLIDING

A movable metal barrier of solid or openwork grille construction, designed to close passageways by a sliding action, either vertically or horizontally, whereby security against fire, intrusion or theft, and/or the elements is provided. When open, it affords access or degress. For vehicular components see DOOR, VEHICULAR.

GRILLE,METAL

A metal frame enclosing a metal core which is constructed of perforated sheet metal, bars, core material, or the like. It is used to form an openwork barrier or screen to allow the passage of a maximum quantity of air and/or light, but excluding the passage of foreign objects. Excludes GUARD, FAN IMPELLER.

SCREEN,WINDOW,METAL

A fixed or movable barrier for the aperture of a window, composed of a metal frame and wire cloth. It is used to provide ventilation and to bar the passage of insects.

FLASHING,METAL

A prefabricated piece of sheet metal used in the construction of a building between two intersecting surfaces to secure a watertight joint.

TREAD,METALLIC,NONSKID

The upper, horizontal part of a step upon which the foot is placed, or a section placed upon or set into a deck, walkway, or coaming, made of metal, and corrugated or otherwise specially constructed to resist skidding. May have added material or inserts such as wood strip or abrasive particles to prevent sparking. Excludes door saddle, floor plates, gratings and elevator sills.

PIPE,DOWNSPOUT

A shaped piece of sheet metal, basically round or rectangular in cross-sectional form, used to form a conduit, for conveying rainwater from the roof of a structure.

ELBOW,DOWNSPOUT PIPE

A shaped piece of sheet metal, basically round or rectangular in cross-sectional form, turning at an angle to effect a change in direction of a rain water downspout. Both ends are designed to fit other shaped sheet metal pieces in the downspout, such as PIPE, DOWNSPOUT, eave gutter outlet, and the like.

SHOE,DOWNSPOUT PIPE

A shaped piece of sheet metal, basically round or rectangular in cross-sectional form, turning at an angle to effect a change in direction of a rain water downspout. One end is designed to fit a PIPE, DOWNSPOUT or ELBOW, DOWNSPOUT PIPE. It is used at the bottom of the downspout as an outlet for the rain water.

TERMINAL,VENTILATION DUCT

A fabricated device, generally constructed with a flared end and a straight or elbow type body. It may contain a damper and is designed to be used at the end of a ventilating duct to control the quantity and/or the direction of air flow.

FLANGE,RAILING

An item having a right hand threaded concentric hole for the purpose of connecting it to a hand railing, side ladder, or the like. It has one flat side (not faced). The opposite side has a projecting rim, edge, lip, or rib. The face may be drilled for connecting bolts or screws. It is not intended for use as a pressure fitting.

CROSS,RAILING

A metal fitting having four branches in the same plane, the axes of which form right angles. May have side outlet(s). Not intended for pressure service on pipelines. Used for hand railings or side ladders.

TEE,RAILING

A metal fitting, having three pipe connections, the branch of which is fixed at 90 degrees (1.5705 radians) to the run or the branch may be adjustable. May have side outlets. Not intended for pressure service on pipe lines. Used for hand railings or side ladders.

ELBOW,RAILING

A metal fitting generally globe (ball) shaped in body design. It is used to connect two or more pipes or tubing at fixed or adjustable angles. It may have slip and pin joints, or threaded joints, which are in accordance with specifications covering American National Taper Pipe Thread for Railing Fittings. It may have side outlet. It is used for hand railings or the like and not designed for use as a pressure fitting.

GRATING,METAL

A fabricated panel of rigid construction. The equidistanced parallel bars are reinforced by welding, riveting or casting the cross members at either right angles or diagonally to the bearing bars. It is used primarily as flooring where ventilation and light are required, the load carrying capacity being the determining factor.

SCREEN,WINDOW,BLACKOUT

A sliding metal panel used to completely cover the windows of a shelter and prevent escape of light during a blackout.

DOOR FRAME AND SLIDING DOOR,METAL

A metal casing or inclosing framework and a movable metal barrier of solid or openwork grill construction designed to close passageways by a sliding action, either vertically or horizontally, whereby security against fire, intrusion or theft, and/or the elements is provided. When open it affords access or egress. It may include all necessary attaching and operating hardware.

VENTILATOR,AIR CIRCULATING

A device designed to allow ventilation without excessive drafts. It may consist of either a deflector or louvers, stationary or adjustable to deflect the direction of air flow. Excludes items with fans.

SUPPORT,CEILING PANEL

A support with a "T" or "L" shaped cross-section whose length is large in comparison to the cross-section. The item is designed to hang from the overhead structure, or be fastened to a vertical structure, and interlock with like items to form a grid for the support of ceiling panels, lighting fixtures, and the like, which form the overhead inside lining of a room. Excludes MOLDING, METAL.

PARTITION SET,MOUNTED

A collection of PARTITION, MOUNTED.

SHUTTER,WINDOW-DOOR

An item mounted inside or outside a window or door and used to exclude or control light or to help insulate a room.

DOOR,ROLLER CURTAIN

A large metallic or nonmetallic closure used to close the opening in a hangar, building, warehouse, and the like to exclude light and wind, maintain reasonable weather tightness, and provide auxiliary access to areas outside the area proper. It is comprised of horizontal interlocking slats and guided at the ends by channel tracks. The item may be designed for rolling on a spring counterbalanced drum or be laterally guided by channel tracks. It may be power or hand operated and may include a hood or cover for the roller drum mechanism.

PARTITION,MOUNTED

An item designed to be attached to the wall, ceiling, and/or floor to provide a sight barrier and a limited degree of sound dampening. It may be used in office areas, bathrooms, and the like and may have a special design for attaching equipment and accessories.

FLASHING,SHELTER,GROUND

A strip of skirting used around the base of a general purpose prefabricated transportable shelter. Excludes FLASHING, METAL.

PANEL,DOOR,ROLLER CURTAIN

A slat which interlocks with others to form a DOOR, ROLLER CURTAIN. It may have hardware such as a handle or lock attached.

FRAME,OBSERVATION WINDOW

A flat rigid item provided with holes or similar means for attaching to a container for the purpose of holding an observation window in place.

FRAME,DOOR

A casing or enclosing framework, in which a DOOR (as modified) may be set or hung.

LUMBER,NON-WOOD,DIMENSIONAL

An item fabricated from a synthetic compound and is used in dimensional wood applications as an alternative to natural wood. It is manufactured in nominal widths of twelve inches or less and has a thickness range from two inches to less than five inches with either a solid or hollow core.

LUMBER,NON-WOOD,BOARD

An item fabricated from a synthetic compound and is used in board lumber applications as a natural wood alternative. It is manufactured in standard board lengths and widths with thicknesses not to exceed two inches.

LUMBER,NON-WOOD,PLANK

An item fabricated from a synthetic compound and is used as an alternative to natural wood planks. It is manufactured in standard plank lengths and widths with thickness ranges from more than two inches to less than five inches.

LUMBER,NON-WOOD,TIMBER

An item fabricated from a synthetic compound and is used as an alternative to natural wood timber. It has a thickness of five inches or more and can be any length or width. Includes items designed for landscaping, railroad ties, decking, or support beam applications.

POST,NON-WOOD

An item fabricated from a synthetic compound and is used as an alternative to natural wood posts. It has a length less than sixteen feet and usually is round or has rounded edges. The post is used as a support to carry a verticl load.

PILE,NON-WOOD

An item fabricated from a synthetic compound and is used as an alternative to natural wood piles. It may have a round or square cross-section and has a length sixteen feet or greater. Typical uses include pier elements, sea walls, or reinforcement applications.

LATH,METAL

An item which serves as a base for plaster, stucco, tiles, and the like. It is fabricated from sheet metal and either perforated or slit and expanded to form meshes or openings. The expanded metal type lath is made in sheets up to 27 inches (685.8 millimeters) wide from 24 to 26 gage material. For expanded metal of sheets wider than 27 inches (685.8 millimeters) and of 18 gage material and heavier, see METAL, EXPANDED; and CORNER BEAD, METAL LATH.

CORNER BEAD,METAL LATH

An item fabricated from sheet metal having a projecting bead and either perforated or expanded wings formed at an angle, used on external plaster angles for protection and forming true corner lines.

METAL,EXPANDED

A ferrous or nonferrous metal sheet, that has been slit and expanded to form a mesh, which is used for reinforced concrete work or plaster wall construction and also for making grille vents and for such articles as trays where stiffness is needed with light weight.

SHOE,WOOD PILE

A tapered metal device, usually square pyramidal or round conical shape, which is designed for use on the foot of a wood pile to facilitate penetration of the pile in hard ground and to prevent the pile end from mushrooming.

CLIP,LANDING MAT

MAT,LANDING

A preformed section of ferrous, nonferrous, or plastic sheet material consisting of interconnecting welded bars and rods, sandwich type constructed panels, or extruded panels of a specific length and width. A section may be ribbed and/or contain a series of pierced holes of a specific diameter and spacing. Connectors on the sides and ends may be male-female, overlap-underlap, or slots and bayonet type hooks. It is designed to provide a supporting surface for aircraft landing strips, roadways, and the like. Excludes MAT, BEACHING, WOVEN WIRE.

PULLING-IN IRON,MANHOLE

A metallic item in the form of a loop or V with offset ends, which is set in concrete or masonry walls of a manhole to provide a convenient and strong attachment for block and tackle when installing of removing electrical cables.

STEEL BAR,REINFORCING

MANHOLE TOP ASSEMBLY

A metallic item consisting of a FRAME, MANHOLE and a COVER, MANHOLE which completely incloses the opening.

COVER,MANHOLE

A metallic item for mounting upon a FRAME, MANHOLE and completely closing the opening.

FRAME,MANHOLE

A metallic item which mounts upon or in a manhole and will accommodate a COVER, MANHOLE.

COLLAR,MANHOLE

A metallic item placed in a manhole to seat the FRAME, MANHOLE.

POLE,LINE CONSTRUCTION,METAL

An upright metal standard, the upper portion of which may be jointly used to carry power, telephone or other communication lines and/or mount facilities for support of these lines. It may be equipped or have the provisions for the mounting and/or support of other accessories such as street lights, control boxes, or the like.

MAT SET,LANDING

A set of landing mats of various sizes with landing mat clips or integral size lock and T-bar end connectors.

MAT,BEACHING,WOVEN WIRE

A preformed item designed specifically to provide a supporting surface for various vehicles on beaches and/or unimproved roadways. It may be woven in one piece or in sections and joined to form a specified length. It may be rolled onto a core and mounted on a skid for storage within a ship. Excludes MAT, LANDING and MAT SET, LANDING.

ANCHOR PLATE,PILE CAP

A flat base U-shaped item fabricated from flat metal bar stock used to secure a pile cap to a timber pile.

REPAIR KIT,BEACHING MAT

CORE MATERIAL,CELLULAR,STRUCTURAL

A light durable material having a cellular core of uniform geometric shapes. It is primarily used for, but not limited to, aircraft structure, such as fuselages, control surfaces, compartments, radomes, and the like. For items with a metallic or nonmetallic facing see PANEL, STRUCTURAL, AIRCRAFT.

SMOKE JACK

A device consisting of a hood and stack usually used to exhaust stack gases of steam locomotives from roundhouses.

MEMBRANE,SURFACING

A fabricated membrane material furnished in rolls and sewn panels. It is used as surfacing in the dustproofing and waterproofing of unpaved airfields, roads, and other areas.

MEMBRANE SURFACING OUTFIT,AIRFIELD-ROADS

A collection of fabric sheets with the necessary hold down equipment, such as anchors, adhesives, rollers, and the like. It is used to form a dustproof and waterproof surface on unpaved roads and unpaved airfield runways, taxiways, landing or parking pads, or the like.

ANCHOR,SURFACING MEMBRANE

A metal rod pointed or tapered at one end to facilitate entrance into the ground. A metal plate is rigidly attached at the opposite end. The item is specifically designed to secure a surfacing membrane in a fixed position to the ground.

TRACKWAY SURFACING OUTFIT,TRUCK MOUNTED

A series of interlocking, extruded, aluminum alloy planks with truck mounted dispensing, anchoring, and recovery equipment such as turntable, A-frame and spool, anchoring equipment, self-locking bolts, tools and accessories, and the like. It is used as an aid to travel across level soft ground, slopes, beaches, dunes, ditches, and banks of inland waters and as a rapidly emplaced helicopter landing pad and a light aircraft landing strip.

TRACKWAY SURFACING OUTFIT

A series of interlocking planks or panels with additional equipment such as a spool and anchoring attachments. It is designed to be dispensed from a truck or emplaced by hand. It is used as an aid to travel across level soft ground, slopes, beaches, dunes, ditches, and banks of inland waters; and, as a rapidly emplaced helicopter landing pad and a light aircraft landing strip.

PANEL,STRUCTURAL

A flat sheet of sandwich construction, having a wood, formed plastic, or fiberglass core bonded to metallic or fiberglass facing material. It is primarily used for fabricating parts, such as floors, control surfaces, compartments, and the like. Excludes CORE MATERIAL, CELLULAR, STRUCTURAL.

GRATING,NONMETALLIC

A fabricated panel which may be molded. Its rigid construction consists of equidistant parallel bars and bearing bars at right or oblique angles. It is reinforced at predetermined points and is used primarily as flooring or side walls where ventilation and light are required. It may be designed for insulation.

CHOCK,PARKING

A chock which is designed to be used on a parking surface to act as a curb to restrict the movement of objects in the direction of the chock. It may have provisions for attaching it permenently to the parking surface and may be made of concrete, metal or other material. For items which are designed for temporary use and are removed when the prevention of movement of an object is no longer required see CHOCK (1), WHEEL-TRACK.

MAT SET,TRACKWAY SURFACING OUTFIT

A set consisting of a specific number of MAT, TRACKWAY SURFACING OUTFIT linked by hinged joints an bolts and designed to be mechanically laid by means of a TRACKWAY SURFACING OUTFIT, TRUCK MOUNTED.

MAT,TRACKWAY SURFACING OUTFIT

A specific munber of PLATE, TRACKWAY SURFACING OUTFIT linked by hinged joints, bolts and edge bolts.

PLATE,TRACKWAY SURFACING OUTFIT

A preformed, generally honeycomb-type metallic or plastic plate element which is linked to other plate elements and designed to be laid as a MAT, TRACKWAY SURFACING OUTFIT. It is used as a supporting surface for crossing rough terrain with soft ground, slopes, dunes, ditches, banks or fords of inland waters, and as a rapidly emplaced helicopter landing pad or aircraft landing strip. Excludes MAT, BEACHING, WOVEN WIRE.

LAYING MECHANISM,TRACKWAY SURFACING OUTFIT

A mechanism designed for laying, anchoring and recovering a MAT SET, TRACKWAY SURFACING OUTFIT. It consists of a pivoted laying mechanism with supporting framework, a device for anchoring a MAT, TRACKWAY SURFACING OUTFIT, an automatic locking mechanism, tools and accessories. Excludes TRACKWAY SURFACING OUTFIT; TRACKWAY SURFACING OUTFIT, TRUCK MOUNTED.

LAYING MECHANISM,TRACKWAY SURFACING OUTFIT,TRUCK MOUNTED

FRAMEWORK,LAUNCHING GUIDE,TRACKWAY LAYING MECHANISM

A metallic or nonmetallic item forming an integral part of the launching guide for a MAT SET, TRACKWAY SURFACING OUTFIT.

FRAMEWORK,MAIN FRAME,TRACKWAY LAYING MECHANISM

An item fabricated from metallic or nonferrous metal, such as shaped material, angles, channels, round bars or consisting of a welded construction. several of these articles are used to form the main frame as a basis for the LAYING MECHANISM, TRACKWAY SURFACING OUTFIT.

FRAMEWORK,TRACKWAY CARRIER

An item fabricated from shaped material, such as angles or channels, tubes, round bars or consisting of a welded or bolted construction. The carrier for the MAT SET, TRACKWAY SURFACING OUTFIT consists of a combination of several of the aforementioned articles.

FRAMEWORK,BOOM,TRACKWAY LAYING MECHANISM

An item fabricated from shaped material, such as angles or channels, tubes, round bars or consisting of a welded or bolted construction with or without boreholes. The boom of the LAYING MECHANISM, TRACKWAY SURFACING OUTFIT consists of a combination of several of the aforementioned articles.

TRACKWAY SURFACING OUTFIT,TRAILER MOUNTED

A series of interlocking, extruded, aluminum alloy planks with trailer mounted dispensing, anchoring, and recovery equipment such as turntable, A-frame and spool, anchoring equipment, self-locking bolts, tools and accessories, and the like. It is used as an aid to travel across level soft ground, slopes, beaches, dunes, ditches, and banks of inland waters and as a rapidly emplaced helicopter landing pad and a light aircraft landing strip.

FASCINE,PORTABLE

A predetermined amount of pipe of a specific length fastened together with chains. It is used to fill ditches, strengthen ramparts, and the like. It allows heavy armored vehicles to cross shallow depressions in the terrain. It may be expendable. Excludes TRACKWAY SURFACING OUTFIT and MAT, LANDING.

TAPE,WARNING,UNDERGROUND

An item of plastic in roll form which is used as a physical visual warning in trenches to signal buried pipelines, cables, sewer lines, and the like.