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 5996-00-487-5777
NSN 5835-01-580-0446
NSN 5950-01-371-2588
NSN 5910-01-399-1592
NSN 6105-01-246-0008
NSN 6130-01-412-4240
NSN 5935-01-399-8732
NSN 5960-00-525-1898
NSN 5935-00-240-5019
NSN 5930-01-322-3904
NSN 5960-00-654-7300
NSN 5855-01-098-9038