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 5925-01-107-5065
NSN 5905-00-115-2981
NSN 5895-00-134-9053
NSN 5985-00-288-6001
NSN 6130-01-131-2122
NSN 5910-01-482-3019
NSN 6145-00-465-1641
NSN 5965-01-422-1392
NSN 5930-01-151-0676
NSN 5950-01-558-3118
NSN 5905-01-152-2580
NSN 5996-00-518-4880