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 5910-01-353-6904
NSN 6240-00-553-8891
NSN 6240-00-752-2581
NSN 5935-01-407-0392
NSN 6610-01-036-4525
NSN 5945-01-382-9224
NSN 5935-00-668-7903
NSN 5985-01-325-4916
NSN 6145-00-196-1394
NSN 6645-01-542-6159
NSN 5915-01-112-8023
NSN 2925-01-606-3201