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 5925-01-564-6008
NSN 6685-00-707-4842
NSN 6220-01-020-8703
NSN 5920-00-149-0013
NSN 5915-00-300-3853
NSN 6145-01-519-7740
NSN 6130-00-489-7205
NSN 6220-01-562-3355
NSN 5996-00-489-0595
NSN 5835-01-434-0790
NSN 4140-01-465-4721
NSN 6320-01-118-0553