Hole shape: round; outside shape: round
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.
NSN 5998-01-202-7905
NSN 5930-01-121-2535
NSN 5999-01-401-5322
NSN 6685-01-446-6164
NSN 5945-01-197-9838
NSN 5945-01-495-4047
NSN 6685-00-163-1267
NSN 5930-00-784-1623
NSN 4140-00-127-5311
NSN 6105-01-241-0535
NSN 5945-00-883-4426
NSN 6610-01-624-2561