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 5996-01-407-1458
NSN 4140-01-422-4431
NSN 6220-01-515-8722
NSN 6610-01-616-4496
NSN 5998-01-613-4399
NSN 5925-01-313-3895
NSN 6645-01-071-0727
NSN 6135-00-519-1325
NSN 5950-01-181-6641
NSN 6240-01-401-5340
NSN 5920-01-323-7645
NSN 6610-01-168-7943