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 5985-00-412-9362
NSN 5950-00-992-0777
NSN 6240-00-344-8582
NSN 6110-01-491-5096
NSN 6685-00-064-8189
NSN 5915-00-193-6850
NSN 6150-00-910-3934
NSN 5835-00-611-0607
NSN 6610-00-470-8209
NSN 5835-00-594-4921
NSN 5895-01-274-6625
NSN 6685-01-634-0611