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 6135-00-990-1822
NSN 5985-01-158-5645
NSN 5910-01-323-1054
NSN 5895-01-566-3926
NSN 5930-00-172-3758
NSN 6130-00-251-9156
NSN 6145-00-881-1485
NSN 2925-00-238-1668
NSN 5895-01-414-2343
NSN 5925-01-054-3453
NSN 5975-00-527-9656
NSN 5920-01-245-7662