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 5945-01-018-4941
NSN 6130-01-435-5105
NSN 6135-00-577-8429
NSN 5945-00-187-7764
NSN 6610-01-591-1117
NSN 5996-01-363-4055
NSN 4140-01-398-2900
NSN 5999-00-915-5560
NSN 5965-01-415-9196
NSN 5990-00-694-4086
NSN 6110-00-838-0492
NSN 6130-01-435-0697