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 5925-01-567-9148
NSN 6110-00-196-8813
NSN 5835-00-392-2630
NSN 6130-01-217-8395
NSN 5905-01-461-3144
NSN 5950-00-454-8584
NSN 6645-00-144-4868
NSN 5935-01-442-8093
NSN 5996-01-574-0898
NSN 5965-01-103-0560
NSN 5975-01-470-7464
NSN 6135-00-500-2082