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 6685-00-318-7766
NSN 5855-01-426-5589
NSN 5855-01-620-0958
NSN 6145-00-003-4184
NSN 5895-01-497-7669
NSN 6110-01-141-5416
NSN 5835-01-384-3206
NSN 5990-01-493-4039
NSN 5855-01-221-4076
NSN 5935-00-913-2172
NSN 5925-00-053-3536
NSN 5930-00-738-8204