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.
Classification: Other articles of iron or steel not wire nesoi
NSN 6105-01-386-1529
NSN 7035-01-106-3476
NSN 5835-00-617-3578
NSN 5930-00-833-7689
NSN 6135-01-100-3593
NSN 6650-00-796-9972
NSN 5915-01-391-7830
NSN 6650-01-601-8194
NSN 6620-00-305-8481
NSN 6110-00-873-3198
NSN 6135-00-027-3914
NSN 6240-00-807-2508