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 5950-00-396-3990
NSN 5960-01-457-0157
NSN 5985-01-384-2725
NSN 6320-00-845-3261
NSN 6685-01-534-8535
NSN 5999-00-413-2587
NSN 6135-01-062-9356
NSN 5990-01-030-5206
NSN 5990-01-385-6634
NSN 5996-01-381-2876
NSN 5990-00-155-2306
NSN 5920-01-094-0857