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 0.1360 through and unthreaded.
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 5910-01-230-7066
NSN 5855-00-494-9581
NSN 6240-01-218-5187
NSN 5910-00-148-8197
NSN 6105-01-336-6053
NSN 6150-01-122-1845
NSN 6105-00-957-8237
NSN 6135-01-020-3805
NSN 5950-01-541-6904
NSN 6620-01-416-9882
NSN 5925-01-627-2898
NSN 5930-01-062-1450