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 5895-00-424-6296
NSN 6105-01-336-7131
NSN 2925-01-014-0118
NSN 6130-01-642-7997
NSN 6135-01-566-1034
NSN 5985-01-585-0659
NSN 5895-00-356-0179
NSN 5935-00-064-8546
NSN 5905-01-551-8937
NSN 6610-01-356-3435
NSN 6620-01-470-3854
NSN 5895-01-397-5869