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 6220-01-122-3155
NSN 5998-00-229-6795
NSN 5999-00-753-7450
NSN 6620-01-623-7266
NSN 5985-01-461-8380
NSN 6220-01-421-4448
NSN 5996-00-469-3160
NSN 5990-01-221-0609
NSN 6220-01-411-5629
NSN 2925-01-244-3016
NSN 5930-01-434-3471
NSN 6610-01-456-5234