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 5895-01-554-3370
NSN 5895-00-782-0844
NSN 6240-00-082-1142
NSN 6105-01-141-2371
NSN 5990-01-649-4647
NSN 6130-01-284-8840
NSN 6130-01-551-0448
NSN 5965-00-240-3819
NSN 6145-00-827-4958
NSN 5950-00-057-2549
NSN 5915-01-015-4373
NSN 6620-01-328-4769