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 5975-00-159-4071
NSN 5950-01-513-9995
NSN 5945-00-988-6242
NSN 5835-01-208-8800
NSN 5975-01-072-8365
NSN 5975-01-154-0074
NSN
NSN 5960-01-597-6288
NSN 6150-00-678-0075
NSN 5855-01-521-1922
NSN 6150-00-318-8209
NSN 6645-01-228-2127