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 5910-01-247-9656
NSN 5920-01-157-9471
NSN 6685-01-205-3296
NSN 6610-01-623-2560
NSN 2925-00-798-8569
NSN 6145-01-221-0773
NSN 5835-01-379-1407
NSN 5925-01-314-9522
NSN 6130-01-519-3247
NSN 5996-01-420-6449
NSN 5905-00-242-7079
NSN 5855-01-317-5354