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 5925-00-529-0441
NSN 5930-00-471-9339
NSN 6650-01-227-1632
NSN 6320-00-456-0836
NSN 6685-00-544-8397
NSN 6685-00-001-8037
NSN 6645-01-208-5090
NSN 6650-00-891-7950
NSN 5920-00-011-8314
NSN 4140-00-620-7379
NSN 4140-01-660-5693
NSN 5835-01-118-4690