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 2925-01-463-0594
NSN 7035-01-509-1381
NSN 6135-01-255-9129
NSN 5950-01-124-0572
NSN 5855-01-241-1054
NSN 5990-00-707-0731
NSN 6320-01-484-7734
NSN 6240-01-516-4081
NSN 5998-01-222-9568
NSN 5935-00-767-1875
NSN 5835-00-170-5238
NSN 6320-00-731-6134