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 5905-00-110-1650
NSN 5835-01-205-6614
NSN 5855-00-489-6754
NSN 5990-01-227-6526
NSN 4140-01-432-8726
NSN 6650-01-328-8363
NSN 6105-01-444-7540
NSN 5990-01-493-4039
NSN 5930-01-253-2587
NSN 5950-01-130-8505
NSN 5905-01-297-0836
NSN 4140-01-152-6600