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 6150-01-078-2281
NSN 6645-01-116-9634
NSN 5998-01-463-7439
NSN 5950-00-301-5352
NSN 6650-01-139-5238
NSN 6135-01-408-9244
NSN 5920-00-226-7148
NSN 5990-01-362-7532
NSN 5905-01-424-7184
NSN 5925-01-122-8135
NSN 6105-00-250-5138
NSN 6240-00-894-4604