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 6130-01-207-0755
NSN 6130-01-446-9114
NSN 7035-01-536-1278
NSN 5996-01-445-1009
NSN 5925-00-167-7471
NSN 5855-01-096-9294
NSN 6240-01-509-0349
NSN 6650-01-044-0183
NSN 6320-01-414-7099
NSN 5915-00-148-4515
NSN 6650-01-150-2595
NSN 6110-01-461-9315