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 6620-01-368-2723
NSN 5945-01-304-6778
NSN 5990-01-386-5561
NSN 6650-01-621-5050
NSN 6320-01-386-3491
NSN 5915-01-567-2741
NSN 5835-00-466-8544
NSN 6650-01-542-6063
NSN 5998-01-434-5661
NSN 2925-01-577-0004
NSN 5965-00-267-4173
NSN 5996-01-259-3243