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 5996-01-167-9234
NSN 6650-01-442-5441
NSN 6220-00-625-8554
NSN 5998-00-977-3322
NSN 6685-01-459-8439
NSN 5990-01-430-3152
NSN 5925-01-145-8883
NSN 6110-00-478-3320
NSN 5950-01-381-1361
NSN 7035-01-194-9482
NSN 5975-01-221-8180
NSN 5999-01-231-9728