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 5910-01-550-9461
NSN 5990-01-439-4643
NSN 6135-01-167-7604
NSN 5999-00-688-9065
NSN 5975-01-012-1993
NSN 6620-01-195-2095
NSN 5950-01-605-6126
NSN 5950-01-250-7526
NSN 5985-00-402-1946
NSN 5920-00-730-8541
NSN 6220-01-558-2179
NSN 6105-01-250-2977