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 5835-00-034-4976
NSN 6240-01-240-7529
NSN 5905-01-073-1471
NSN 6130-01-057-1199
NSN 6135-01-470-4077
NSN 4140-00-857-3202
NSN 5910-01-046-7444
NSN 2925-01-422-1542
NSN 6610-01-265-1824
NSN 6610-01-445-6687
NSN 5895-01-129-3834
NSN 5910-01-453-1928