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 6130-01-543-4499
NSN 6220-01-445-5544
NSN 5960-01-106-9300
NSN 5905-00-538-4950
NSN 5960-01-599-4726
NSN 5996-00-850-4907
NSN 6650-00-090-5320
NSN 5930-01-067-6422
NSN 5855-01-497-0467
NSN 5915-01-059-6755
NSN 5950-01-515-4939
NSN 5996-01-181-7057