Gray anodize or blue oxide film
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 4140-01-531-7375
NSN 5965-00-236-0016
NSN 6320-00-937-5625
NSN 6620-00-684-6771
NSN 5945-00-643-6182
NSN 5855-01-116-8905
NSN 5975-00-990-5354
NSN 5835-01-111-0969
NSN 5985-01-218-5643
NSN 5835-00-617-3578
NSN 5920-00-045-4211
NSN 5996-01-493-4329