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 5935-01-338-8989
NSN 2925-01-276-6100
NSN 6145-00-170-7947
NSN 5950-01-352-4460
NSN 5915-01-369-0811
NSN 5945-01-094-3075
NSN 5996-00-351-2369
NSN 6610-01-271-7593
NSN 6240-00-416-6140
NSN 6645-00-634-9317
NSN 6135-01-408-9244
NSN 5920-01-157-9471