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 5895-01-278-9975
NSN 6240-00-660-8849
NSN 6130-01-347-0370
NSN 5855-00-466-2309
NSN 5998-00-305-4087
NSN 6685-00-230-4267
NSN 6645-00-216-6126
NSN 5999-00-383-1542
NSN 5975-01-175-6099
NSN 5975-01-593-2856
NSN 6240-01-253-0687
NSN 5960-00-515-7366