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 5920-01-146-8445
NSN 5835-00-034-4976
NSN 6650-01-323-5407
NSN 5950-00-427-5185
NSN 6685-00-684-7891
NSN 5935-01-463-0042
NSN 5975-01-417-3595
NSN 5998-00-312-3060
NSN 6645-01-541-9114
NSN 5915-00-806-2930
NSN 6145-00-242-6581
NSN 6135-01-507-1135