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 5960-01-253-2333
NSN 5990-01-411-5930
NSN 6110-01-085-6052
NSN 6650-01-630-3410
NSN 6135-01-319-0623
NSN 5996-01-449-0666
NSN 5855-01-629-0954
NSN 6650-01-428-9958
NSN 6220-01-575-7741
NSN 5996-00-008-7960
NSN 4140-00-205-0853
NSN 5835-01-632-6627