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 5915-01-646-4034
NSN 6150-00-553-1047
NSN 5930-00-277-4704
NSN 5835-01-647-6426
NSN 7035-01-169-6551
NSN 5999-00-945-9858
NSN 6240-00-586-6428
NSN 2925-00-251-0105
NSN 6620-01-578-7561
NSN 6610-00-173-4011
NSN 5835-01-522-1023
NSN 6320-01-029-4220