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 6110-01-331-0890
NSN 6145-00-209-3556
NSN 6220-01-556-9497
NSN 6645-01-167-0712
NSN 5895-01-634-0630
NSN 5895-01-110-2353
NSN 5998-00-339-1271
NSN 6645-01-199-7553
NSN 5990-01-116-2181
NSN 5910-00-235-9639
NSN 2925-01-600-2309
NSN 5905-01-337-2907