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 5950-00-157-3785
NSN 6150-01-557-8514
NSN 6135-01-247-5660
NSN 5905-00-752-0099
NSN 5855-01-530-3172
NSN 5925-01-379-7484
NSN 6620-00-236-5004
NSN 6320-01-352-5653
NSN 6145-00-725-7163
NSN 6240-01-195-4511
NSN 5950-01-332-1124
NSN 5998-01-133-5433