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: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi
NSN 5905-00-256-5783
NSN 5960-01-497-4572
NSN 5960-00-393-2505
NSN 5895-01-432-0525
NSN 5935-01-563-5776
NSN 6320-01-495-1244
NSN 5990-01-554-8547
NSN 6105-00-909-8189
NSN 5975-00-693-2531
NSN 6110-00-834-7801
NSN 5935-01-428-4470
NSN 6320-01-067-0474