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 5935-00-736-1288
NSN 6685-00-718-8056
NSN 5990-01-179-1000
NSN 6130-01-255-9731
NSN 5965-00-445-1843
NSN 5960-00-927-6716
NSN 6240-00-170-5302
NSN 5950-00-165-1574
NSN 5990-01-035-9673
NSN 5835-01-252-5879
NSN 5910-01-194-2287
NSN 5998-01-595-8924