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 5915-01-302-3883
NSN 6130-01-371-1049
NSN 6105-01-016-7707
NSN 5930-01-535-0988
NSN 5950-01-065-0858
NSN 5975-00-501-3279
NSN 6650-00-775-6560
NSN 6150-01-235-9346
NSN 5945-00-456-0699
NSN 5950-01-264-5429
NSN 6645-01-308-9349
NSN 5925-00-468-2757