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 6610-01-033-6382
NSN 5910-01-441-2301
NSN 5998-00-559-9250
NSN 6110-00-102-7522
NSN 6650-01-390-6989
NSN 6685-00-663-9000
NSN 6240-01-393-8909
NSN 2925-01-072-7101
NSN 5920-01-391-7491
NSN 5990-01-218-5160
NSN 5895-01-233-9892
NSN 5985-01-519-4851