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 5925-00-500-9338
NSN 6130-01-440-1314
NSN 5910-01-474-1123
NSN 5960-01-149-1261
NSN 5999-00-192-4681
NSN 6320-00-284-1524
NSN 6135-00-998-5884
NSN 6130-00-826-5590
NSN 6240-01-037-1273
NSN 5975-01-398-1666
NSN 5855-01-270-6847
NSN 5985-01-158-2557