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 6130-01-252-2531
NSN 5930-00-374-8587
NSN 5910-00-553-4261
NSN 5855-01-318-5175
NSN 5960-00-372-3625
NSN 5945-00-105-6635
NSN 4140-01-463-8749
NSN 5998-00-261-8727
NSN 4140-01-425-0025
NSN 6240-01-565-3392
NSN 5925-00-188-8678
NSN 5915-01-448-9399