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 5835-01-504-0837
NSN 6135-01-190-2628
NSN 5998-00-413-1056
NSN 6610-01-112-6839
NSN 4140-01-261-5725
NSN 7035-01-016-2217
NSN 5855-00-316-5050
NSN 6645-01-414-4941
NSN 5920-01-542-2211
NSN 6610-01-583-9635
NSN 7035-01-391-9858
NSN 5905-01-555-0577