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 7035-00-009-8705
NSN 5910-01-309-1500
NSN 5905-01-435-1024
NSN 6320-01-350-5570
NSN 6240-01-628-8570
NSN 6320-01-631-7828
NSN 6610-01-461-8180
NSN 5930-01-560-1356
NSN 5935-01-634-0668
NSN 5930-01-213-3588
NSN 5925-01-270-6185
NSN 5945-00-383-5356