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: Other articles of iron or steel not wire nesoi
NSN 4140-00-255-7799
NSN 6145-01-200-4055
NSN 6105-00-205-0655
NSN 6110-00-040-0164
NSN 6650-01-195-3957
NSN 5905-00-572-5791
NSN 5895-01-417-3218
NSN 6685-01-273-5208
NSN 5835-01-486-4191
NSN 6130-01-492-6628
NSN 6610-00-866-1757
NSN 6620-01-598-2271