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 5998-00-283-1683
NSN 5855-00-003-6408
NSN 5835-01-515-6537
NSN 6135-01-251-7054
NSN 5920-01-048-0766
NSN 5895-00-781-0346
NSN 5910-00-548-0505
NSN 5925-00-581-5245
NSN 6105-01-156-0167
NSN 5945-01-265-3985
NSN 5895-00-783-3416
NSN 5996-01-540-7787