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 5998-00-355-7986
NSN
NSN 5990-01-433-7886
NSN 6610-00-430-5208
NSN 6650-01-406-5322
NSN 5935-01-461-8407
NSN 5945-01-118-0738
NSN 6320-01-376-2778
NSN 7035-01-592-4732
NSN 5920-00-080-8735
NSN 5855-01-495-2670
NSN 5905-00-681-9175