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 5985-01-193-0009
NSN 2925-00-866-2757
NSN 5930-00-006-1442
NSN 5930-00-661-2280
NSN 5960-00-156-0702
NSN 7035-01-434-1986
NSN 5990-01-188-7309
NSN 5835-00-155-1379
NSN 5835-00-967-0998
NSN 5996-01-061-6894
NSN 6110-01-364-8880
NSN 6110-00-446-6099