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 5920-01-078-1323
NSN 5996-00-443-6206
NSN 6620-01-484-4153
NSN 5835-01-432-1277
NSN 5998-01-291-2108
NSN 5999-01-558-5147
NSN 6645-01-615-1052
NSN 5996-00-848-9090
NSN 5985-01-467-9924
NSN 6150-00-567-7893
NSN 6685-01-142-3201
NSN 5925-00-792-9073