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 6145-00-008-1834
NSN 6620-00-608-1480
NSN 5930-01-139-5369
NSN 6240-01-047-2786
NSN 5996-01-564-6864
NSN 6650-01-463-2274
NSN 6220-00-192-1164
NSN 5935-01-099-3666
NSN 5965-01-481-9177
NSN 5910-00-715-7966
NSN 4140-00-305-1023
NSN 6650-01-055-6168