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 5996-00-262-5094
NSN 5920-00-585-0104
NSN 6135-01-508-3784
NSN 5855-01-616-4391
NSN 7035-00-896-3213
NSN 5920-01-614-8056
NSN 5905-00-080-1662
NSN 5998-00-095-6506
NSN 5996-01-414-7676
NSN 5835-01-218-5560
NSN 6610-01-103-4627
NSN 5895-01-267-8709