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 6610-01-530-4528
NSN 6650-00-877-1797
NSN 6685-00-720-3525
NSN 5999-01-011-2048
NSN 5905-01-442-5214
NSN 6240-01-374-1904
NSN 6135-00-563-7711
NSN 5920-00-613-3116
NSN 5895-01-183-8114
NSN 5855-01-369-5037
NSN 5895-01-377-0091
NSN 6105-00-540-5616