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 6685-00-227-0199
NSN 6685-00-222-2932
NSN 6130-01-656-0126
NSN 5895-01-285-5834
NSN 5920-01-539-9585
NSN 5950-00-116-8987
NSN 6645-00-133-7823
NSN 6150-00-281-3447
NSN 6150-01-107-0149
NSN 5990-01-390-2177
NSN 5975-01-200-7059
NSN 5975-01-085-9021