A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 6220-01-055-7423
NSN 5945-01-634-0588
NSN 6645-00-779-5355
NSN 6110-01-152-6012
NSN 5990-01-053-5115
NSN 5960-01-241-9078
NSN 6145-01-091-4652
NSN 5835-01-138-8622
NSN 5835-01-495-0595
NSN 5999-01-064-1295
NSN 6145-00-054-2915
NSN 6145-00-085-7570