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 5930-01-487-4842
NSN 5998-01-305-6323
NSN 6145-01-415-2658
NSN 5990-01-246-7417
NSN 5935-01-370-7955
NSN 6620-01-189-8153
NSN 6110-01-234-3618
NSN 5925-00-137-6582
NSN 6650-01-004-0937
NSN 5998-01-570-3157
NSN 5965-01-628-6032
NSN 6240-00-099-8606