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 5960-00-908-2416
NSN 6685-01-312-3619
NSN 5855-00-149-0766
NSN 6110-01-268-1723
NSN 6150-00-127-5179
NSN 5935-01-527-8585
NSN 6650-01-141-1582
NSN 5985-01-440-9350
NSN 5920-01-006-9821
NSN 6645-01-463-3441
NSN 6110-01-030-9457
NSN 5990-00-226-7894