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 6220-01-142-3148
NSN 6610-01-633-8931
NSN 6220-01-449-1239
NSN 5965-00-532-3284
NSN 5910-01-550-9709
NSN 5855-00-118-8762
NSN 5925-01-199-9043
NSN 5965-00-362-2158
NSN 5975-00-912-4877
NSN 6105-00-099-8818
NSN 5990-00-994-0555
NSN 5996-01-211-0208