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 5960-00-831-0210
NSN 5950-01-074-7523
NSN 5935-00-071-3634
NSN 5895-00-110-4882
NSN 5920-00-294-0753
NSN 6135-01-184-0727
NSN 5998-01-497-1450
NSN 5855-01-442-7929
NSN 6110-01-027-1851
NSN 5910-01-507-7001
NSN 5950-01-231-7013
NSN 6110-00-934-7943