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 5905-00-932-1743
NSN 5935-01-367-0015
NSN 5855-00-014-5008
NSN 6685-01-008-8886
NSN 5925-01-335-8933
NSN 5910-01-116-1784
NSN 6105-01-106-6355
NSN 5920-01-242-9208
NSN 5996-00-852-1730
NSN 5935-00-186-9881
NSN 6620-01-359-0476
NSN 4140-00-740-2153