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 6685-01-211-4716
NSN 6610-00-777-7494
NSN 5950-01-170-4834
NSN 6135-01-164-3561
NSN 6110-01-425-4718
NSN 5920-01-414-6983
NSN 5975-01-083-3243
NSN 5930-00-904-0524
NSN 5999-00-969-2061
NSN 6105-01-489-5498
NSN 5855-01-228-0942
NSN 5965-01-023-4965