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 5930-01-121-7871
NSN 5910-00-245-0328
NSN 6110-00-869-5512
NSN 5905-00-214-9985
NSN 5930-01-362-9713
NSN 5975-01-440-9080
NSN 6320-01-215-6459
NSN 6220-01-131-1528
NSN 5910-01-403-2812
NSN 6610-01-139-4713
NSN 5990-01-018-1994
NSN 6240-00-353-5753