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 5996-01-368-7990
NSN 6145-01-232-7484
NSN 6135-01-176-1879
NSN 5975-01-463-9050
NSN 5925-01-608-4259
NSN 6135-01-656-7556
NSN 5895-01-014-4524
NSN 6610-00-448-1264
NSN 2925-01-074-9102
NSN 2925-01-043-9786
NSN 5990-01-411-8548
NSN 5998-00-120-2221