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 5950-01-580-2034
NSN 5855-01-119-3316
NSN 6685-01-052-2193
NSN 5855-01-333-9606
NSN 5895-01-541-2726
NSN 5905-01-634-0595
NSN 6320-01-294-7161
NSN 5915-00-904-9157
NSN 7035-01-175-4321
NSN 5985-01-594-5075
NSN 5998-01-259-1584
NSN 5905-00-577-0969