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 6320-00-977-3930
NSN 5930-01-530-4237
NSN 6135-01-417-6539
NSN 5975-01-415-5650
NSN 5996-01-633-7979
NSN 6620-01-502-7105
NSN 5990-00-398-0507
NSN 5905-01-021-6823
NSN 5905-00-630-6965
NSN 6685-00-169-6505
NSN 6130-01-493-8685
NSN 6645-00-664-4665