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 4140-01-525-7692
NSN 5975-01-091-0124
NSN 2925-00-278-9468
NSN 7035-01-131-1168
NSN 6240-01-504-7064
NSN 5960-00-796-1664
NSN 6150-00-473-1520
NSN 6240-00-195-6308
NSN 6150-01-521-4342
NSN 5910-00-274-3189
NSN 7035-01-443-3052
NSN 4140-00-786-7377