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 5920-01-442-8998
NSN 6130-01-619-8243
NSN 6620-00-443-6048
NSN 6620-01-175-5922
NSN 6240-01-517-5564
NSN 7035-00-585-2113
NSN 6110-01-421-4449
NSN 5915-01-529-7278
NSN 5895-01-559-5451
NSN 6150-01-370-3607
NSN 6610-00-955-2808
NSN 5925-01-592-5711