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 5996-01-136-9353
NSN 5905-01-593-2358
NSN 5925-01-364-2960
NSN 5975-01-397-1346
NSN 6620-00-897-3182
NSN 6135-01-374-6631
NSN 5950-00-232-4915
NSN 5998-01-476-1488
NSN 6220-00-218-0857
NSN 4140-01-121-3116
NSN 6320-01-541-7585
NSN 5950-01-163-1877