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.
NSN 5960-01-245-3942
NSN 6220-01-400-0637
NSN 5990-01-348-9843
NSN 6620-01-661-2700
NSN 5960-01-011-8687
NSN 6610-01-378-2789
NSN 5855-01-020-7982
NSN 5920-00-276-8657
NSN 5920-01-386-1086
NSN 5998-01-457-0694
NSN 5855-01-234-5346
NSN 6150-01-170-4307