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 6145-00-635-9957
NSN 5985-01-420-5966
NSN 5950-01-215-0307
NSN 5920-01-574-1689
NSN 6620-00-127-0816
NSN 6650-01-398-1117
NSN 7035-01-613-7564
NSN 5945-01-513-8857
NSN 5985-00-832-9988
NSN 5910-01-324-8438
NSN 5975-01-643-4654
NSN 5960-00-195-6435