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 5910-00-911-6114
NSN 5990-00-115-2374
NSN 5950-01-048-9914
NSN 6130-01-388-8729
NSN 6145-01-644-4055
NSN 6135-01-622-1296
NSN 5895-01-446-6768
NSN 5999-00-469-4971
NSN 6150-01-192-1630
NSN 6145-01-565-5470
NSN 6320-01-056-1164
NSN 4140-01-321-7853