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 5945-01-176-0048
NSN 5975-01-422-0154
NSN 5905-01-088-7416
NSN 6645-00-485-1440
NSN 6135-01-148-8531
NSN 5915-01-348-6612
NSN 5895-01-359-7622
NSN 5910-00-489-0729
NSN 5960-00-344-2586
NSN 6135-00-284-1406
NSN 6645-00-489-8575
NSN 5999-01-288-2343