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 6220-01-123-9114
NSN 6130-00-535-4494
NSN 5985-01-242-3313
NSN 5905-01-514-7467
NSN 6620-01-519-2628
NSN 5965-01-547-9029
NSN 5999-00-090-7008
NSN 6105-00-904-7464
NSN 6645-01-352-5675
NSN 7035-01-287-9817
NSN 6135-01-400-2947
NSN 5835-00-160-7142