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 2925-01-141-7563
NSN 6320-00-823-2015
NSN 6135-01-408-9244
NSN 5930-00-917-1250
NSN 7035-01-386-3004
NSN 5998-00-279-7268
NSN 6620-01-562-6865
NSN 5985-01-083-9542
NSN 5835-01-416-6455
NSN
NSN 5925-00-427-9930
NSN 5895-01-558-1075