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 7035-00-312-3055
NSN 5930-00-602-2164
NSN 5925-00-209-0435
NSN 6150-01-619-3349
NSN 6110-01-453-7473
NSN 5920-01-483-2299
NSN 6240-01-416-3713
NSN 5960-01-046-5953
NSN 2925-01-461-4347
NSN 5930-00-813-0842
NSN 7035-01-505-0028
NSN 5935-01-507-7919