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 5975-01-218-4407
NSN 5920-00-980-1585
NSN 6685-01-470-5600
NSN 5990-01-081-0619
NSN 5915-00-788-0380
NSN 6220-00-371-7589
NSN 6145-01-555-7738
NSN 5915-00-578-1917
NSN 5960-00-658-2780
NSN 6105-01-245-8204
NSN 5895-01-442-8459
NSN 6645-01-187-6997