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 5985-01-443-7053
NSN 5990-01-271-8130
NSN 6320-01-396-2080
NSN 5950-01-253-8475
NSN 6645-01-450-5175
NSN 5965-01-590-3311
NSN 5999-01-317-8678
NSN 6130-01-623-8888
NSN 6110-00-271-9928
NSN 5910-01-547-3089
NSN 5945-01-009-3733
NSN 5835-01-150-6084