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 5965-01-398-0779
NSN 6220-01-608-4136
NSN 5996-00-319-1820
NSN 5950-01-426-5284
NSN 5999-01-616-8707
NSN 5855-01-278-8922
NSN 6650-01-440-5947
NSN 5920-00-632-1308
NSN 6685-00-351-9082
NSN 5945-01-513-9686
NSN 5905-01-414-2641
NSN 6650-00-197-7563