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 5935-01-007-6646
NSN 6220-01-204-8916
NSN 5895-01-017-5782
NSN 6620-00-785-6019
NSN 6150-00-816-3467
NSN 5925-01-308-8548
NSN 6685-01-268-2294
NSN 5965-00-246-5612
NSN 7035-01-509-1381
NSN 6320-01-271-0247
NSN 5895-00-280-0416
NSN 6220-00-001-2137