Od is flat channel type
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.
NSN 5855-01-417-1315
NSN 6135-01-190-2628
NSN 6135-01-483-5269
NSN 5975-00-104-9172
NSN 6105-00-431-4391
NSN 6240-01-441-3606
NSN 5925-01-571-5799
NSN 6240-00-260-0399
NSN 6130-01-567-1764
NSN 6650-00-990-5732
NSN 6650-01-039-4795
NSN 5965-01-575-6787