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 6105-00-343-1964
NSN 5999-01-359-2087
NSN 5985-00-327-9492
NSN 6620-01-323-5275
NSN 5996-00-350-5516
NSN 5905-01-632-8839
NSN 5990-00-892-5537
NSN 6610-01-383-4458
NSN 6620-00-333-3317
NSN 5999-01-024-9547
NSN 5950-01-591-0183
NSN 5999-00-983-8310