A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
NSN 7035-01-485-0269
NSN 5950-01-466-6118
NSN 6105-01-112-2308
NSN 5910-01-652-7956
NSN 5975-01-377-2524
NSN 5895-00-219-6078
NSN 5965-01-437-7736
NSN 7035-01-633-9537
NSN 6220-01-614-0811
NSN 5920-00-146-4109
NSN 6650-01-633-9147
NSN 6240-01-299-6881