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 6145-00-490-9180
NSN 2925-01-217-0465
NSN 6645-01-152-1092
NSN 5990-01-463-2279
NSN 5835-01-424-0054
NSN 5910-00-907-8751
NSN 6150-01-460-9081
NSN 5835-01-170-0271
NSN 5985-01-360-7467
NSN 6110-01-364-7168
NSN 5990-00-461-5372
NSN 6610-00-176-5486