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.
NSN 5950-00-198-3899
NSN 6320-01-103-6218
NSN 6240-01-496-5066
NSN 6220-00-876-8325
NSN 5990-00-980-7808
NSN 5965-01-544-2605
NSN 6220-01-491-5863
NSN 4140-00-725-4012
NSN 5998-00-283-6827
NSN 5895-01-252-8089
NSN 6135-01-508-3784
NSN 5905-00-727-2046