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 6320-01-511-1526
NSN 6145-01-541-5056
NSN 5960-00-758-5064
NSN 5925-01-377-7989
NSN 6240-00-677-0305
NSN 6130-01-030-0064
NSN 6145-01-381-2529
NSN 6105-00-959-5468
NSN 5999-01-272-8632
NSN 6150-01-324-9655
NSN 5835-00-092-1136
NSN 6610-01-305-8863