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 5915-00-978-4634
NSN 6105-01-356-5896
NSN 6145-01-624-1167
NSN 6320-01-440-8771
NSN 5965-01-607-3874
NSN 7035-00-295-0451
NSN 6105-00-814-0231
NSN 5920-01-625-1857
NSN 6150-01-521-2711
NSN 6645-01-317-6071
NSN 5965-00-275-0491
NSN 6135-01-222-0703