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 5998-00-938-1783
NSN 6130-01-123-9041
NSN 6220-01-152-2637
NSN 5950-01-367-5797
NSN 5895-00-690-4507
NSN 6320-01-089-9086
NSN 5975-00-545-3548
NSN 6645-01-168-8465
NSN 5835-01-263-1293
NSN 6650-00-166-7160
NSN 5920-00-925-2639
NSN 6220-00-827-0227