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 6135-00-809-2148
NSN 5990-01-232-9008
NSN 5950-01-420-6979
NSN 5855-01-482-8290
NSN 5920-01-265-5957
NSN 6685-01-238-1851
NSN 4140-01-254-1659
NSN 5965-00-089-8308
NSN 5910-01-219-2972
NSN 5895-00-752-0549
NSN 5855-01-615-8016
NSN 5910-00-469-8650