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 6145-01-625-8442
NSN 5910-00-358-2252
NSN 5950-01-462-5878
NSN 2925-01-359-4027
NSN 6220-01-621-8968
NSN 4140-01-468-5962
NSN 5920-00-184-2058
NSN 2925-00-676-8334
NSN 2925-01-531-1202
NSN 6220-01-364-8666
NSN 4140-01-073-1455
NSN 5985-00-263-2469