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 5950-01-025-9376
NSN 5925-00-024-0864
NSN 6150-01-545-6393
NSN 5998-01-363-5652
NSN 6610-01-524-7522
NSN 6685-00-912-1847
NSN 5855-01-020-7982
NSN 5905-00-027-4045
NSN 5910-01-141-0470
NSN 6105-01-441-9312
NSN 5910-01-592-9406
NSN 5920-00-711-0767