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 5996-01-030-4111
NSN 5996-01-369-2678
NSN 5925-01-422-0431
NSN 5895-01-106-4161
NSN 5998-00-594-4474
NSN 6105-01-444-1201
NSN 6130-01-399-8553
NSN 5925-00-262-6087
NSN 5975-01-476-7808
NSN 4140-00-135-6398
NSN 5855-00-688-9954
NSN 5910-01-514-7309