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 6135-00-334-4500
NSN 5835-00-757-3558
NSN 5905-00-523-8458
NSN 5835-01-097-5151
NSN 6650-01-163-6330
NSN 5985-00-269-5388
NSN 6620-01-468-6017
NSN 5998-01-049-9010
NSN 6320-01-556-2011
NSN 6620-01-426-2220
NSN 6150-01-630-6432
NSN 5910-01-603-8689