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 5975-01-233-4043
NSN 6650-01-111-6825
NSN 6110-01-263-9437
NSN 6610-01-035-1252
NSN 7035-00-490-0485
NSN 5945-01-394-6123
NSN 5996-01-541-2427
NSN 6610-00-147-3187
NSN 5835-00-269-2232
NSN 5915-01-050-9080
NSN 4140-01-157-1353
NSN 2925-00-156-4495