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 5895-01-204-9039
NSN 6110-01-571-7840
NSN 5965-01-467-7974
NSN 5910-01-515-7115
NSN 5920-01-275-8554
NSN 5945-01-187-6137
NSN 6645-01-494-3845
NSN 5915-00-221-2391
NSN 6645-01-061-5516
NSN 6150-01-287-9079
NSN 5925-01-300-7711
NSN 6620-00-211-9077