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 7035-01-204-7481
NSN 5935-01-375-2289
NSN 5905-01-338-7269
NSN 5910-00-060-4638
NSN 5975-01-176-2515
NSN 6150-00-273-9014
NSN 6105-00-603-5201
NSN 6150-01-520-9196
NSN 5999-01-429-0149
NSN 5835-01-158-6878
NSN 2925-01-103-1241
NSN 5930-01-439-1147