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 5965-01-468-5583
NSN 6130-01-456-6013
NSN 5910-00-964-9981
NSN 5925-01-345-8541
NSN 5950-01-206-4234
NSN 5925-01-612-8995
NSN 6110-00-534-1441
NSN 5990-01-384-9747
NSN 4140-01-147-4764
NSN 6220-00-904-2429
NSN 6610-00-484-2662
NSN 5996-01-056-4952