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 5990-00-905-4624
NSN 5985-01-172-4949
NSN 6135-01-273-1253
NSN 5835-00-764-4388
NSN 6130-01-493-5315
NSN 5950-01-489-1164
NSN 6220-01-050-5139
NSN 5965-01-499-5180
NSN 5915-01-121-0374
NSN 6105-01-384-2435
NSN 2925-01-022-3181
NSN 5950-01-621-8357