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 5985-01-214-2902
NSN 5950-01-104-6854
NSN 6135-01-285-8807
NSN 5925-01-177-4636
NSN 6620-01-419-2992
NSN 5910-00-201-0258
NSN 5985-00-268-7318
NSN 6320-00-310-1080
NSN 6650-00-885-3775
NSN 4140-00-085-1355
NSN 6105-01-005-4825
NSN 5910-01-252-8303