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 5930-01-201-4528
NSN 5990-00-931-0594
NSN 5910-00-265-3302
NSN 2925-01-408-9485
NSN 2925-01-594-5385
NSN 6130-01-539-5316
NSN 5910-01-295-3329
NSN 5905-01-550-6826
NSN 2925-00-176-3889
NSN 6320-00-393-0138
NSN 5915-01-253-3273
NSN 5895-00-113-7209