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 6110-01-349-7035
NSN 6645-01-313-2715
NSN 5925-01-415-3084
NSN 6105-00-950-9881
NSN 6650-01-330-6740
NSN 5910-01-364-9163
NSN 5996-01-350-4139
NSN 6110-00-932-1590
NSN 5935-01-602-3321
NSN 6610-01-645-6275
NSN 6130-01-158-1329
NSN 5945-00-851-3553