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 5855-01-528-7287
NSN 5965-01-660-1699
NSN 6685-00-825-8038
NSN 6150-00-882-2956
NSN 5910-01-391-7774
NSN 5950-00-471-6430
NSN 6130-00-055-1742
NSN 5910-01-396-7716
NSN 6620-01-652-4349
NSN 5835-01-632-6627
NSN 5930-01-414-9229
NSN 6645-01-158-3592