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 5925-01-237-2501
NSN 6685-00-962-4135
NSN 6145-01-413-2058
NSN 5945-00-448-7765
NSN 5895-01-633-4795
NSN 5975-00-556-9743
NSN 4140-00-435-0436
NSN 5925-00-539-8372
NSN 5999-01-214-2569
NSN 6650-01-590-7622
NSN 6130-01-123-0371
NSN 5999-01-512-3060