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 5905-00-459-4269
NSN 6145-00-059-7974
NSN 6685-01-422-9927
NSN 5925-00-142-9991
NSN 7035-01-100-9295
NSN 6135-01-568-3234
NSN 5975-01-350-2050
NSN 5975-01-391-9576
NSN 7035-00-931-3684
NSN 5920-01-472-3583
NSN 6320-01-185-3857
NSN 5835-00-679-9769