A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The length must exceed 25 percent of the outside diameter or distance across peripheral flats. (when the length, outside diameter, and/or distance across peripheral flats are designated as a tolerance, the maximum dimension will be used to determine compliance.) it must have one or more internal steps (counterbores) and/or external steps on either or both bearing surfaces. Excludes spacer, optical element. See also washer, recessed and washer, shouldered and recessed.
NSN 5950-01-573-4263
NSN 6135-01-201-5858
NSN 4140-00-091-0869
NSN 6135-00-120-1027
NSN 5990-01-481-3080
NSN 5925-01-621-2810
NSN 5905-00-087-4834
NSN 6620-01-098-9866
NSN 6105-00-518-1854
NSN 5999-01-400-0883
NSN 6240-01-367-1925
NSN 5999-01-481-3133