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 6130-00-361-7114
NSN 6645-01-043-5236
NSN 5945-00-989-3669
NSN 5998-01-310-5454
NSN 6320-01-554-0901
NSN 5935-00-141-9437
NSN 7035-00-142-9076
NSN 6620-00-280-2874
NSN 4140-01-090-6483
NSN 6685-01-314-0555
NSN 5835-01-347-8714
NSN 5915-00-636-9785