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 aluminum nesoi
NSN 4140-00-448-4306
NSN 2925-01-609-8464
NSN 6240-01-108-6766
NSN 5920-01-401-5315
NSN 6220-00-707-5044
NSN 6645-01-358-4907
NSN 5930-00-674-9880
NSN 5960-01-087-8687
NSN 2925-00-574-8796
NSN 5960-01-449-1310
NSN 4140-01-511-6039
NSN 5990-01-431-6749