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 5990-01-143-2518
NSN 5990-01-258-3848
NSN 6620-00-787-6683
NSN 6105-01-568-4819
NSN 6645-01-605-1485
NSN 6650-01-373-5912
NSN 5920-00-092-8729
NSN 5915-01-132-0634
NSN 5999-01-441-0516
NSN 4140-01-039-0414
NSN 6220-00-573-5747
NSN 2925-01-589-9136