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 5965-01-049-8307
NSN 5985-00-595-5392
NSN 6685-01-580-0311
NSN 6110-00-618-4171
NSN 5996-00-400-9237
NSN 5910-00-218-1114
NSN 6150-00-704-4018
NSN 5905-01-427-2285
NSN 5945-00-636-9934
NSN 6145-00-481-8737
NSN 6650-00-590-9073
NSN 5975-01-259-6294