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 5905-01-196-6154
NSN 5935-00-217-8847
NSN 5950-01-208-2355
NSN 6145-00-139-4670
NSN 5999-01-528-7492
NSN 6240-00-501-7964
NSN 5905-00-876-4469
NSN 6685-01-279-8447
NSN 5920-01-086-7219
NSN 5960-01-024-3729
NSN 5910-01-302-1993
NSN 5910-01-457-1733