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 2925-00-808-5077
NSN 5920-00-149-1469
NSN 5996-00-981-6848
NSN 5985-00-262-9609
NSN 6145-01-341-1058
NSN 5960-01-257-0225
NSN 5965-00-263-1226
NSN 5998-01-245-2561
NSN 5835-00-113-6090
NSN 5965-01-568-8031
NSN 2925-01-368-5773
NSN 7035-01-493-9487