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 5965-01-468-6186
NSN 6150-00-072-7176
NSN 5960-00-392-6291
NSN 5975-01-401-5355
NSN 6645-01-419-3071
NSN 6220-00-886-4717
NSN 5945-01-284-7337
NSN 6150-01-574-0789
NSN 6320-00-506-2314
NSN 5998-01-446-8289
NSN 5915-01-498-4940
NSN 5925-01-256-3070