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 5895-01-509-6429
NSN 6150-00-242-3717
NSN 5945-01-073-5791
NSN 5910-01-303-7088
NSN 5998-01-344-0396
NSN 5945-00-639-9848
NSN 6650-01-089-8890
NSN 5998-00-679-3449
NSN 5925-01-123-9104
NSN 5930-00-727-4392
NSN 4140-00-654-9146
NSN 5835-01-097-5693