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 5930-01-211-5822
NSN 6240-01-488-7927
NSN 5975-01-531-6112
NSN 6220-01-291-4803
NSN 5920-01-213-1513
NSN 5975-01-574-6746
NSN 5905-01-041-7354
NSN 5996-01-201-1299
NSN 6150-00-786-4075
NSN 6620-01-542-9999
NSN 5835-01-381-9565
NSN 6620-01-062-4307