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 6645-01-049-6116
NSN 6150-00-458-8300
NSN 5925-01-590-6206
NSN 6110-00-966-6387
NSN 5996-00-799-8838
NSN 5915-01-023-7674
NSN 6145-01-055-5067
NSN 5920-01-187-0555
NSN 6620-01-332-0623
NSN 5998-01-161-5450
NSN 6645-01-208-5090
NSN 5990-00-060-0012