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 5935-01-367-6289
NSN 6220-01-317-8070
NSN 5998-01-322-4850
NSN 5998-01-052-3508
NSN 6150-01-576-5900
NSN 6240-01-506-3911
NSN 5999-00-678-8634
NSN 5855-00-014-5008
NSN 6610-01-137-1275
NSN 6130-01-424-0299
NSN 5985-01-508-9960
NSN 5996-01-292-2761