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 5990-01-218-5160
NSN 6620-01-255-7757
NSN 5930-01-352-5428
NSN 5925-00-966-7171
NSN 5920-01-450-7364
NSN 6645-01-007-9192
NSN 5998-01-447-8139
NSN 5895-00-851-9053
NSN 6620-01-119-9239
NSN 6135-00-461-3590
NSN 5915-01-421-1818
NSN 5925-01-423-4448