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 5920-00-477-3116
NSN 5985-01-100-1206
NSN 5990-01-321-2997
NSN 6685-00-912-1847
NSN 6145-00-199-8066
NSN 5996-00-280-8980
NSN 6145-00-407-3752
NSN 4140-01-125-5187
NSN 6150-01-331-7541
NSN 5990-01-340-3575
NSN 5999-00-386-9812
NSN 6685-01-555-7938