Not casehardened; hole shape: round; shape: round
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 6620-01-144-0827
NSN 5895-00-499-8040
NSN 5999-01-432-0510
NSN 5945-01-433-6464
NSN 5985-00-851-5042
NSN 6240-01-167-5979
NSN 5855-01-039-2859
NSN 6150-01-129-7907
NSN 5965-01-415-2898
NSN 5999-01-528-9679
NSN 5990-01-390-2177
NSN 5835-01-463-2334