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 5985-01-197-2016
NSN 5930-00-143-4582
NSN 6685-01-359-7872
NSN 5996-01-043-2105
NSN 5930-01-537-0302
NSN 6105-00-252-9017
NSN 5985-00-149-1675
NSN 6650-01-184-9238
NSN 5925-01-363-7765
NSN 4140-01-338-9080
NSN 6105-00-141-5598
NSN 5835-01-360-2657