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 6650-00-264-0664
NSN 5990-01-147-5225
NSN 5895-01-592-6431
NSN 5905-01-064-8336
NSN 5925-01-256-3070
NSN 7035-01-131-1168
NSN 6645-01-290-3930
NSN 5895-01-121-0114
NSN 5895-01-131-8714
NSN 5960-00-960-6805
NSN 5935-01-463-7729
NSN 5990-00-234-0119