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.)
Classification: Nuts of iron or steel
NSN 6240-01-613-2503
NSN 4140-01-068-3500
NSN 6135-01-202-8113
NSN 2925-01-132-5827
NSN 6610-01-447-0695
NSN 5996-00-016-7067
NSN 5835-00-302-5296
NSN 5910-01-315-5790
NSN 5895-01-047-5955
NSN 6240-00-263-0549
NSN 5998-01-208-6450
NSN 7035-01-364-0286