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 6150-01-594-9868
NSN 6130-00-952-1803
NSN 2925-01-316-7487
NSN 6130-00-491-2002
NSN 6620-01-078-6372
NSN 4140-01-170-5395
NSN 6135-00-134-6648
NSN 6130-00-707-5931
NSN 5910-01-419-9733
NSN 6220-00-755-7546
NSN 5996-01-009-0428
NSN 5945-00-597-4561