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 5930-01-081-7431
NSN 6685-01-594-4357
NSN 5930-01-515-0896
NSN 5855-00-631-4565
NSN 6145-00-952-1815
NSN 6105-00-392-2917
NSN 5935-00-466-9825
NSN 6685-01-486-4364
NSN 6105-01-622-9572
NSN 5910-01-377-1122
NSN 5945-00-457-8964
NSN 7035-00-079-7189