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 6620-01-525-5914
NSN 5910-01-076-1408
NSN 5965-01-498-1974
NSN 5855-01-038-2189
NSN 5930-01-424-6423
NSN 5998-00-291-4889
NSN 5920-01-479-5808
NSN 2925-00-062-5119
NSN 6610-00-251-7073
NSN 6650-01-127-9518
NSN 6135-01-523-3198
NSN 5905-01-033-3904