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 6105-00-490-4838
NSN 6610-01-232-4427
NSN 5950-01-196-8512
NSN 5910-00-225-8920
NSN 6685-01-552-3349
NSN 6650-00-562-0291
NSN 6610-01-606-2144
NSN 6685-00-841-8218
NSN 5998-00-004-5822
NSN 5996-00-735-3839
NSN 5930-00-420-1385
NSN 5985-00-094-2512