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 5965-00-362-2158
NSN 6320-01-411-7469
NSN 6130-01-483-3879
NSN 5915-01-300-8811
NSN 5975-01-406-6830
NSN 5985-01-211-9126
NSN 6135-01-226-4071
NSN 6220-01-459-8017
NSN 5998-01-256-3549
NSN 5905-01-281-2938
NSN 6685-00-216-6676
NSN 6240-01-442-7746