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 6105-00-598-4910
NSN 6110-00-496-0532
NSN 5905-00-811-6087
NSN 5835-01-571-4083
NSN 6145-01-406-3272
NSN 6220-01-340-4874
NSN 6610-01-435-5425
NSN 6105-01-555-3916
NSN 5935-01-400-5949
NSN 5965-01-161-8097
NSN 4140-00-936-0233
NSN 6650-00-590-9073