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: Hard rubber (for example, ebonite) in all forms, including waste and scrap; articles of hard rubber
NSN 6240-00-243-4907
NSN 5960-00-713-7394
NSN 6135-01-484-8637
NSN 6110-01-416-3665
NSN 6150-01-267-7693
NSN 6610-01-462-9439
NSN 5998-01-618-3860
NSN 5835-01-412-0344
NSN 5915-00-572-2503
NSN 6240-00-799-1528
NSN 5965-01-466-7829
NSN 2925-01-333-6346