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 5930-01-165-8494
NSN 5965-01-393-8290
NSN 5920-01-540-5432
NSN 6650-00-111-1081
NSN 2925-00-233-5644
NSN 5915-01-389-4377
NSN 5895-01-386-7696
NSN 5998-00-517-2558
NSN 6650-00-279-5741
NSN 5925-01-592-3077
NSN 5975-01-411-0181
NSN 5925-00-265-9488