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 5965-01-043-5295
NSN 5855-01-362-3640
NSN 5915-01-425-2303
NSN 5985-01-304-0616
NSN 6105-00-238-2979
NSN 5925-01-411-7771
NSN 6650-01-014-5990
NSN 6645-01-035-3787
NSN 5965-01-566-0876
NSN 2925-01-501-1104
NSN 6610-00-679-4835
NSN 5975-00-083-1433