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 4140-01-634-0330
NSN 6650-00-195-7519
NSN 5925-00-443-7811
NSN 6105-01-113-1446
NSN 5990-01-227-6526
NSN 5855-00-586-6255
NSN 4140-01-361-7975
NSN 6685-00-868-9845
NSN 5996-01-426-1920
NSN 5960-00-998-4324
NSN 5999-01-507-8680
NSN 6650-01-289-3901