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 5985-00-001-8462
NSN 5998-01-528-8373
NSN 5930-01-308-8035
NSN 5930-01-306-0061
NSN 5945-00-145-9307
NSN 6685-01-470-3499
NSN 5920-00-455-9743
NSN 4140-00-571-2766
NSN 5935-01-279-4441
NSN 5905-00-460-1203
NSN 5930-00-832-3269
NSN 5855-00-149-0766