Item has 12 holes through and equally spaced. 3 are equally spaced from each other (every 4th hole) and 8-32 unc-2b. The other 9 are unthreaded and 0.1360 thru.
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 5998-00-077-3375
NSN 6105-00-333-8972
NSN 5915-01-290-4828
NSN 6110-00-732-2054
NSN 5895-01-391-1320
NSN 6650-00-920-0332
NSN 5998-01-448-4896
NSN 6135-01-069-2482
NSN 6650-01-412-1040
NSN 6610-00-488-9528
NSN 6685-00-938-3984
NSN 5999-01-081-9314