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 7035-01-462-8336
NSN 6220-01-545-6847
NSN 6135-01-442-7275
NSN 7035-00-088-7355
NSN 5920-00-726-2006
NSN 6130-00-148-2909
NSN 5835-01-357-1247
NSN 5895-01-511-8750
NSN 6110-01-598-3561
NSN 5960-01-539-1956
NSN 2925-00-980-5749
NSN 5910-01-102-6480