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 6130-00-840-1037
NSN 5975-01-182-3282
NSN 5895-01-132-6667
NSN 5835-01-502-9228
NSN 5905-00-782-1508
NSN 6135-00-416-2898
NSN 5985-01-643-5854
NSN 7035-01-342-9124
NSN 5905-00-111-1130
NSN 6240-00-871-8798
NSN 5920-01-423-8595
NSN 6650-00-255-2633