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 6685-01-147-0960
NSN 5910-00-203-5856
NSN 7035-01-246-3086
NSN 6145-01-558-5017
NSN 6240-00-441-7962
NSN 5985-01-346-7912
NSN 6240-01-055-9696
NSN 5910-00-150-8653
NSN 6150-00-683-5349
NSN 5925-01-634-0664
NSN 6620-00-054-4778
NSN 5996-00-903-6308