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 2925-00-404-6461
NSN 6240-00-850-1407
NSN 4140-01-279-0556
NSN 5930-01-492-5691
NSN 6135-01-529-8523
NSN 5996-01-279-1890
NSN 5920-01-156-1013
NSN 6650-01-338-9998
NSN 5975-01-295-9198
NSN 6320-01-643-0850
NSN 6645-00-405-8570
NSN 6220-00-541-8515