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 6650-01-107-3830
NSN 7035-01-337-1729
NSN 5910-01-049-7347
NSN 5835-00-148-9719
NSN 5999-00-733-3709
NSN 5996-01-415-3291
NSN 6135-00-897-8666
NSN 6645-01-139-0156
NSN 6105-00-560-7007
NSN 6135-01-557-3351
NSN 6135-00-234-6508
NSN 5910-00-728-7381