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: Articles of aluminum nesoi
NSN 4140-01-411-5908
NSN 4140-00-821-9836
NSN 6135-00-921-6487
NSN 5920-01-480-8899
NSN 5930-01-252-1546
NSN 6320-01-173-7950
NSN 6150-01-502-7545
NSN 6220-00-409-4304
NSN 5975-01-451-2439
NSN 6650-01-003-9355
NSN 6150-00-187-1368
NSN 5985-01-632-8545