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 6685-01-049-2046
NSN 5895-00-241-0214
NSN 5985-01-144-4090
NSN 5935-01-469-5780
NSN 6685-01-480-2988
NSN 5985-00-016-5883
NSN 6135-00-087-5300
NSN 6150-00-346-6679
NSN 6130-01-296-6347
NSN 5905-00-775-4733
NSN 7035-01-440-1862
NSN 5960-01-211-2089