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 5915-01-020-1318
NSN 6650-01-139-0022
NSN 5990-00-147-3144
NSN 5835-00-126-2961
NSN 6150-00-155-8511
NSN 6240-00-421-1862
NSN 6105-01-349-2674
NSN 5975-01-096-6270
NSN 6240-00-531-3187
NSN 6220-01-487-3904
NSN 5925-01-068-2887
NSN 6135-01-177-3552