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 5965-00-303-9701
NSN 2925-01-159-8312
NSN 6150-01-599-9489
NSN 5950-01-329-8793
NSN 5950-01-195-5503
NSN 5905-01-386-1108
NSN 6220-01-418-0383
NSN 5960-00-984-4537
NSN 6620-01-504-1827
NSN 6240-01-289-4536
NSN 6240-01-290-6449
NSN 6620-00-111-0401