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 5855-01-537-1653
NSN 2925-01-076-5219
NSN 7035-01-123-8723
NSN 6610-00-049-6497
NSN 6135-01-150-6916
NSN 6110-00-061-9239
NSN 5965-01-483-1395
NSN 6685-00-727-3344
NSN 6685-01-354-7059
NSN 5910-00-428-4017
NSN 6130-00-107-8839
NSN 5895-01-559-5605