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 5915-01-027-5067
NSN 6105-01-121-8734
NSN 5855-00-165-3093
NSN 2925-01-506-4067
NSN 5990-01-307-4489
NSN 5985-01-370-9556
NSN 6150-00-982-0638
NSN 6220-00-269-8396
NSN 6240-00-127-7874
NSN 5910-01-212-9659
NSN 6110-00-099-7113
NSN 5905-01-469-2907