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 5930-01-530-2283
NSN 5910-01-003-4971
NSN 5998-01-185-5009
NSN 5920-00-815-5599
NSN 5910-01-647-4713
NSN 5930-01-555-8484
NSN 5895-01-317-3986
NSN 6150-01-650-6888
NSN 4140-01-258-4044
NSN 6110-01-038-9455
NSN 5925-00-488-9182
NSN 4140-01-174-9335