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 7035-00-490-0485
NSN 5960-01-034-0408
NSN 5920-00-445-2777
NSN 5996-01-602-1754
NSN 6610-01-072-3447
NSN 5935-01-263-2844
NSN 6220-01-147-3632
NSN 5920-01-348-1972
NSN 6620-01-363-0499
NSN 6685-00-542-1902
NSN 5895-00-575-4444
NSN 2925-01-146-0278