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 2925-01-437-9041
NSN 5835-01-039-9973
NSN 5996-01-617-6575
NSN 5895-01-502-9453
NSN 6135-01-136-1059
NSN 6610-00-962-3723
NSN 6685-01-367-1125
NSN 6135-01-222-0703
NSN 5895-00-462-1916
NSN 6685-01-446-8855
NSN 6130-00-266-7496
NSN 6110-01-134-0576