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 6110-01-521-0401
NSN 6130-00-807-9513
NSN 5895-00-407-9017
NSN 5855-01-258-5161
NSN 5895-01-065-2336
NSN 6685-01-328-8051
NSN 5945-01-160-2355
NSN 5950-01-146-0449
NSN 5996-00-079-1268
NSN 6150-01-531-6207
NSN 6145-00-542-7980
NSN 5998-01-464-5014