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 5999-01-313-7378
NSN 5950-01-514-5857
NSN 5975-00-541-8531
NSN 6320-00-937-5625
NSN 5915-01-411-1071
NSN 6145-01-051-2393
NSN 5930-00-518-7278
NSN 5950-01-433-2289
NSN 6145-01-546-8837
NSN 5895-00-163-6420
NSN 5920-00-336-9055
NSN 6685-01-168-2916