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 6220-01-523-7043
NSN 6650-01-090-0719
NSN 6150-01-323-7274
NSN 6150-00-733-4035
NSN 6650-01-299-2587
NSN 6145-01-629-6839
NSN 5895-00-175-6415
NSN 5990-01-305-8121
NSN 6135-01-205-5965
NSN 5996-01-514-1610
NSN 6110-00-293-6816
NSN 5910-01-204-8768