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 5920-00-185-9587
NSN 5905-00-594-8102
NSN 6685-00-081-7708
NSN 6320-01-056-1164
NSN 5910-01-088-6848
NSN 5999-00-924-9924
NSN 4140-01-215-0298
NSN 5920-00-156-4482
NSN 6620-01-396-0942
NSN 6150-01-220-5601
NSN 5920-01-079-3632
NSN 6150-00-995-4954