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 2925-01-386-7392
NSN 7035-00-570-4100
NSN 5998-00-528-9032
NSN 5930-01-017-3631
NSN 5930-00-187-5146
NSN 5905-01-089-8723
NSN 7035-01-448-4740
NSN 6150-00-292-6814
NSN 5930-01-409-2952
NSN 5965-01-545-0539
NSN 6610-01-617-6495
NSN 6620-01-526-2857