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 6130-01-228-9984
NSN 5985-01-175-9888
NSN 6130-01-441-4175
NSN 6135-01-586-9728
NSN 6220-01-431-7915
NSN 5996-01-328-8706
NSN 5985-01-142-8643
NSN 5990-00-165-1809
NSN 5915-00-192-3109
NSN 5895-00-490-0776
NSN 6130-01-433-3638
NSN 5985-01-452-2988