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 5915-01-117-3034
NSN 5960-01-573-6483
NSN 6610-01-341-6041
NSN 6220-01-332-3610
NSN 6240-00-197-6819
NSN 5999-01-531-9593
NSN 6650-01-037-9755
NSN 5975-01-322-1682
NSN 6145-01-517-6708
NSN 6130-00-067-4097
NSN 5935-00-828-7313
NSN 6620-01-477-0123