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 5930-00-420-5577
NSN 5960-00-649-9373
NSN 5999-01-423-1030
NSN 6650-01-227-6032
NSN 6135-01-247-5660
NSN 6130-00-065-9995
NSN 6610-01-448-8904
NSN 5975-00-450-4796
NSN 6320-01-290-5271
NSN 6620-01-547-6088
NSN 5905-00-277-7439
NSN 5996-01-040-2606