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 6220-01-221-9429
NSN 5996-00-445-8496
NSN 6645-01-078-9590
NSN 5996-01-062-4622
NSN 6145-01-478-1722
NSN 5965-00-913-9545
NSN 6150-01-158-5327
NSN 6130-00-760-9144
NSN 5915-01-627-8329
NSN 5960-01-536-9763
NSN 5999-01-144-7172
NSN 5925-00-928-6081