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 5999-01-313-4328
NSN 5925-00-188-3864
NSN 5925-01-560-5895
NSN 5996-01-214-8363
NSN 5960-00-285-1001
NSN 5999-00-409-1526
NSN 2925-01-118-6125
NSN 6130-01-300-7869
NSN 5945-01-202-4239
NSN 5935-01-499-4525
NSN 5945-00-177-4676
NSN 5835-00-847-7277