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: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi
NSN 4140-01-418-4155
NSN 5895-00-130-3364
NSN 6620-01-077-8033
NSN 5945-01-488-9433
NSN 6320-00-937-5625
NSN 5930-01-201-7679
NSN 5996-01-086-3395
NSN 6685-01-237-7039
NSN 6620-00-924-4369
NSN 5985-00-005-5258
NSN 5905-00-445-1717
NSN 5985-01-582-5823