30 degree taper on outside, 45 degree taper inside on opposite end
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: Other articles of iron or steel not wire nesoi
NSN 5910-01-575-7611
NSN 5999-01-031-4084
NSN 5905-01-154-2579
NSN 6620-00-236-7148
NSN 6150-00-528-4175
NSN 6240-01-443-0519
NSN 5999-01-462-9674
NSN 6110-01-073-3525
NSN 6650-01-050-8680
NSN 6650-00-129-9138
NSN 5950-01-571-3662
NSN 5855-01-364-9810