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 6645-00-542-1206
NSN 6685-00-608-3295
NSN 5996-01-336-0338
NSN 6145-00-448-8264
NSN 5945-00-301-4830
NSN 6220-00-262-7863
NSN 6105-00-409-1744
NSN 5920-01-159-3087
NSN 4140-01-480-3552
NSN 5905-00-244-7413
NSN 6220-01-178-9041
NSN 6610-01-398-8815