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 2925-00-964-7128
NSN 5920-00-950-9761
NSN 6130-01-372-4317
NSN 5990-00-026-4420
NSN 6130-00-984-3035
NSN 7035-01-271-1643
NSN 5990-01-400-3299
NSN 5990-01-272-4091
NSN 6650-01-531-9827
NSN 5925-00-103-7918
NSN 6130-00-107-5303
NSN 5990-00-202-5127