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 6620-01-488-4681
NSN 6240-00-163-5143
NSN 5990-00-844-5659
NSN 5945-00-375-6647
NSN 5990-01-581-5103
NSN 5935-01-656-9705
NSN 6685-00-423-7316
NSN 6320-00-456-0836
NSN 5998-01-651-5041
NSN 5945-00-276-9274
NSN 6685-01-474-0313
NSN 5975-00-051-3994