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.
Classification: Other articles of iron or steel not wire nesoi
NSN 6105-00-298-8810
NSN 6650-01-413-0133
NSN 6130-01-551-2415
NSN 6110-00-245-1814
NSN 5996-01-027-0702
NSN 5960-01-307-2676
NSN 6150-00-971-2116
NSN 5950-01-632-0739
NSN 5998-01-557-4275
NSN 6145-01-549-1585
NSN 6610-00-371-5953
NSN 5930-00-155-5917