15 degrees angle between body inside diameter and counterbore
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 5920-00-243-9506
NSN 5895-01-534-3620
NSN 4140-01-325-5422
NSN 5999-01-546-7777
NSN 6650-01-364-8504
NSN 4140-01-554-5494
NSN 5950-01-522-5482
NSN 6105-01-026-4749
NSN 6145-01-301-3573
NSN 6105-01-448-7843
NSN 5950-01-445-3822
NSN 6110-00-873-3198