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 6620-01-590-7035
NSN 5920-01-352-6650
NSN 5895-01-345-5199
NSN 5920-00-275-0498
NSN 6650-00-959-6869
NSN 6240-01-003-8666
NSN 6130-01-324-8706
NSN 6135-00-985-7887
NSN 5990-01-514-8030
NSN 5950-01-452-6325
NSN 5935-01-249-8305
NSN 6620-01-256-9703