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 6240-01-089-6149
NSN 2925-01-658-4470
NSN 6130-01-097-9234
NSN 4140-01-536-8729
NSN 6150-01-481-8050
NSN 5935-01-232-7102
NSN 2925-01-071-9291
NSN 6150-01-080-2025
NSN 6150-01-569-5492
NSN 5915-01-409-2926
NSN 5990-01-065-0492
NSN 5990-00-946-8587