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 5998-01-565-4772
NSN 6145-01-519-3281
NSN 6685-01-505-3853
NSN 5945-00-286-8594
NSN 5920-01-209-9142
NSN 5950-01-555-8152
NSN 2925-01-228-6554
NSN 5975-01-204-1368
NSN 6130-01-415-2470
NSN 2925-00-246-3077
NSN 6645-01-231-9891
NSN 5930-01-321-6228