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 6320-01-506-9439
NSN 5960-00-266-6741
NSN 5998-01-499-2132
NSN 5985-01-347-0135
NSN 6240-01-582-0168
NSN 6240-00-177-0385
NSN 2925-00-185-1618
NSN 5910-00-411-3619
NSN 5960-01-279-2589
NSN 5915-00-353-0853
NSN 6135-00-242-9531
NSN 6645-00-183-8812