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 5895-01-529-4514
NSN 5996-01-500-1830
NSN 2925-00-952-7085
NSN 6105-01-183-1208
NSN 5910-00-923-2882
NSN 5950-00-350-2825
NSN 5950-01-588-7264
NSN 5930-01-129-0738
NSN 5905-01-546-4478
NSN 5998-01-157-5345
NSN 5935-01-621-5485
NSN 5920-01-060-9302