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 6610-01-074-8158
NSN 6320-01-119-3935
NSN 6650-00-952-2754
NSN 5945-00-702-9706
NSN 5945-01-230-8504
NSN 6320-01-511-1526
NSN 5905-00-150-0643
NSN 6620-00-506-0112
NSN 6150-01-534-1825
NSN 6110-00-113-1415
NSN 6110-00-141-1966
NSN 7035-00-365-3989