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 6110-01-212-8440
NSN 5950-00-128-6219
NSN 5950-01-538-8237
NSN 5855-01-197-2774
NSN 6220-00-255-5652
NSN 5855-00-337-3679
NSN 5945-01-011-9153
NSN 5945-00-730-9114
NSN 5925-00-574-4362
NSN 5855-00-869-3635
NSN 5920-01-615-6408
NSN 5950-00-146-7048