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 5990-01-341-5735
NSN 5835-00-398-9678
NSN 5920-00-045-4211
NSN 6620-01-468-9288
NSN 5975-00-826-5700
NSN 5950-00-943-1797
NSN 5930-01-527-7417
NSN 4140-01-453-4360
NSN 6130-00-317-3054
NSN 5895-01-436-5223
NSN 5920-00-584-4592
NSN 6130-00-554-7852