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 6240-01-458-9184
NSN 5965-01-055-0102
NSN 6645-00-484-1992
NSN 6145-00-161-2394
NSN 5910-01-198-5433
NSN 6320-01-607-1491
NSN 6240-00-068-5543
NSN 5990-01-249-2060
NSN 5998-01-084-3284
NSN 5895-01-083-8960
NSN 6320-01-552-8721
NSN 5835-01-324-8739