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 5905-01-283-5876
NSN 5999-01-278-9377
NSN 6620-01-447-2172
NSN 6650-01-520-4765
NSN 5999-01-367-8709
NSN 5945-01-167-8498
NSN 5905-00-526-9582
NSN 5915-01-326-3712
NSN 6645-00-540-8930
NSN 5925-00-902-3240
NSN 6130-01-415-0590
NSN 5990-01-128-3758