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 6620-01-643-3048
NSN 5950-00-126-2995
NSN 5910-01-115-0200
NSN 5920-01-116-3576
NSN 5960-00-269-4762
NSN 5905-01-186-6695
NSN 6105-00-413-8097
NSN 6650-01-441-3624
NSN 5975-01-152-1266
NSN 6685-01-377-6433
NSN 6650-01-185-2544
NSN 5996-01-183-9053