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 6105-01-377-6284
NSN 6650-00-088-4741
NSN 5985-01-111-9349
NSN 5915-01-281-8559
NSN 6320-00-082-5868
NSN 5835-01-426-6573
NSN 6110-00-135-9475
NSN 5930-01-055-0598
NSN 5975-01-389-7279
NSN 5935-01-634-0668
NSN 6135-00-221-4720
NSN 5905-01-361-8825