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 7035-01-327-6130
NSN 5910-01-165-2896
NSN 6130-01-241-2265
NSN 2925-00-373-8837
NSN 5999-00-647-4999
NSN 5855-01-469-2798
NSN 7035-01-479-5268
NSN 5895-01-079-7077
NSN 5950-01-025-5826
NSN 5920-01-626-0737
NSN 6650-00-653-1744
NSN 5975-00-920-7442