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.
NSN 5990-00-147-3144
NSN 5965-01-081-9543
NSN 6610-01-471-8130
NSN 5855-00-688-9954
NSN 6685-00-310-4060
NSN 5930-01-421-2417
NSN 6620-00-516-3204
NSN 4140-00-488-5540
NSN 5925-00-980-0159
NSN 5950-00-090-9318
NSN 5975-00-715-3710
NSN 5945-00-113-0472