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 5975-00-295-3586
NSN 6110-01-563-8936
NSN 6645-01-056-5291
NSN 5950-01-305-8642
NSN 6110-01-395-5236
NSN 6645-01-144-8627
NSN 6220-00-801-3872
NSN 6650-00-014-2991
NSN 5950-00-938-8532
NSN 2925-01-191-9668
NSN 5930-01-042-8923
NSN 5998-01-066-9803