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 5998-01-192-1311
NSN 5895-00-468-4103
NSN 6645-01-221-5888
NSN 2925-01-422-1542
NSN 5895-01-410-7447
NSN 6620-01-497-3744
NSN 5915-00-269-4463
NSN 5935-01-019-3866
NSN 5855-00-149-0766
NSN 6320-01-384-3850
NSN 5999-01-609-3017
NSN 2925-01-200-8757