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 6130-00-812-2357
NSN 6110-01-234-7124
NSN 5935-01-426-4699
NSN 6130-01-509-5201
NSN 4140-01-384-0330
NSN 2925-01-604-8984
NSN 6220-01-367-6411
NSN 5855-00-885-8452
NSN 5996-01-452-5076
NSN 5930-01-137-5707
NSN 6610-00-209-4372
NSN 6650-00-479-7888