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 5975-01-411-5382
NSN 6645-00-262-7448
NSN 5960-01-612-9844
NSN 6610-01-356-3435
NSN 6610-01-301-3513
NSN 7035-01-622-5984
NSN 5925-00-096-4433
NSN 6130-01-109-3050
NSN 5920-01-044-5621
NSN 5835-01-384-3206
NSN 5895-01-084-3692
NSN 4140-01-624-0020