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 5835-00-725-2087
NSN 5960-00-171-9575
NSN 6130-00-352-2317
NSN 5950-01-561-1444
NSN 5990-00-936-3947
NSN 6150-00-843-5905
NSN 7035-01-169-1166
NSN 5920-01-057-0593
NSN 5855-01-208-1471
NSN 6320-00-731-6134
NSN 5915-01-068-2542
NSN 6220-01-140-3796