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 4140-00-339-1514
NSN 5985-01-359-2090
NSN 5985-01-252-8008
NSN 5915-01-558-6597
NSN 7035-00-557-5570
NSN 5999-01-584-0549
NSN 5925-00-539-8372
NSN 5985-01-469-9496
NSN 5935-01-591-4278
NSN 6645-00-269-8440
NSN 2925-01-517-2968
NSN 5935-00-302-4754