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 2925-01-291-9997
NSN 5965-01-439-4493
NSN 6110-01-421-2091
NSN 5975-00-566-4232
NSN 5950-00-253-7097
NSN 5960-01-139-3136
NSN 6150-00-468-5416
NSN 5910-00-394-9524
NSN 5965-00-594-3115
NSN 5960-01-378-1729
NSN 5999-01-035-1330
NSN 5835-01-394-3812