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 6645-00-296-8310
NSN 6685-00-127-0934
NSN 5998-00-827-0527
NSN 6645-00-851-6654
NSN 5930-01-497-8025
NSN 5996-01-422-7365
NSN 6610-00-156-5699
NSN 5930-01-148-2375
NSN 5930-01-202-9305
NSN 5905-00-661-2395
NSN 5930-01-131-7661
NSN 5920-01-062-8731