Square nut; heavy
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 5855-01-546-0337
NSN 6320-01-512-2031
NSN 5905-01-450-1257
NSN 5985-01-039-1140
NSN 5998-01-569-0699
NSN 5905-01-506-6544
NSN 6620-00-740-3699
NSN 7035-00-252-7467
NSN 5930-01-598-1402
NSN 5935-01-298-9558
NSN 5920-01-039-2236
NSN 6150-00-281-9482