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 6220-01-249-3884
NSN 5975-01-257-3494
NSN 6685-01-660-1839
NSN 5895-01-300-8422
NSN 5945-01-422-2529
NSN 6610-01-304-3226
NSN 6320-01-616-0843
NSN 6105-00-913-4842
NSN 5895-00-260-1806
NSN 5910-01-423-8788
NSN 6150-01-068-4307
NSN 6240-00-829-4179