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 5950-01-218-5639
NSN 5935-01-258-3430
NSN 5910-01-257-0132
NSN 4140-01-400-0643
NSN 5915-01-163-4332
NSN 5985-00-492-1752
NSN 5998-01-364-3837
NSN 6320-01-084-8821
NSN 6105-00-286-5382
NSN 5950-01-170-2793
NSN 2925-00-596-9775
NSN 6685-01-117-9854