A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see gasket. For items manufactured from lubricated plastics, see bearing, washer, thrust. For items manufactured from lubricated felt, see felt, mechanical, preformed. Excludes disk, valve; insulator washer; and shim. See also spacer, plate and spacer, sleeve.
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5985-00-459-5586
NSN 5905-01-013-3971
NSN 6685-00-345-0508
NSN 2925-01-457-5649
NSN 5935-01-212-3119
NSN 7035-01-263-5463
NSN 5920-00-161-4564
NSN 6650-01-358-0948
NSN 6150-01-145-0111
NSN 6150-01-038-7816
NSN 5910-01-193-3862
NSN 5996-00-685-9109