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 5965-01-367-7380
NSN 4140-00-448-3228
NSN 5910-00-192-7499
NSN 6110-01-051-0178
NSN 6620-00-634-9455
NSN 5950-01-114-8138
NSN 5965-00-985-9157
NSN 5925-01-111-3373
NSN 5996-01-351-6181
NSN 5999-01-113-7955
NSN 5895-00-165-1289
NSN 6620-01-578-7561