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 5835-01-359-2575
NSN 5996-00-088-0584
NSN 5965-00-773-9047
NSN 4140-00-318-0159
NSN 5960-01-443-3067
NSN 5935-01-624-1859
NSN 7035-00-145-9138
NSN 6240-01-244-2014
NSN 6610-00-841-8221
NSN 5920-01-461-7676
NSN 6135-01-252-0315
NSN 6650-01-024-7903