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 6220-01-235-9027
NSN 6685-01-377-0519
NSN 5925-01-259-4736
NSN 5975-01-535-1491
NSN 6220-00-225-8345
NSN 6685-00-846-6179
NSN 5855-00-189-6066
NSN 6620-01-336-2663
NSN 5965-01-339-8139
NSN 6105-00-332-1173
NSN 6650-01-625-6961
NSN 6110-00-851-6746