6210-12-307-3911

5365-17-114-3708 5365171143708 171143708 is a tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. it is designed to maintain a predetermined distance between assembled parts. the item may be with or without flange(s) of any peripheral shape. the overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). for items having other than a round or hexagon peripheral shape, see spacer, plate. excludes items with lubricating features, see bearing, sleeve and bushing, sleeve. see also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

5310-15-114-3708 5310151143708 151143708 is a washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. the hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). the thickness cannot exceed 25 percent of the largest outside dimension. when the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. the maximum tolerance is applied to dimensions and used as a determining factor. items with separable lamination use shim. for items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. excludes disk, valve, graphite impregnated and lubricated items.

1010-23-114-3708 1010231143708 231143708 is a device that provide(s) rail type mounting surfaces on a rifle, carbine, machine gun or pistol. the mounting surfaces will allow the attachment of various accessories to the weapon which may include forward pistol grips(s), flashligt(s), various sighting devices, and the like. it may/may not be permanently mounted.

3130-00-114-3708 3130001143708 001143708

2540-21-114-3708 2540211143708 211143708