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 6620-01-132-5190
NSN 6220-00-519-2335
NSN 5965-01-497-2723
NSN 5945-01-013-8585
NSN 5855-01-069-4742
NSN 6240-00-395-0019
NSN 6150-01-412-4970
NSN 6620-01-452-1161
NSN 6130-01-128-6210
NSN 5835-00-126-2961
NSN 5910-00-061-4943
NSN 5975-01-599-9818