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 5905-01-047-6222
NSN 6610-00-105-9663
NSN 7035-00-421-8710
NSN 6620-01-434-6538
NSN 6145-01-536-5649
NSN 6240-01-484-6712
NSN 6220-00-705-5254
NSN 5975-00-262-0896
NSN 4140-01-085-3995
NSN 5930-01-570-0320
NSN 5985-00-910-5111
NSN 5960-00-558-9152