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 6105-01-146-5335
NSN 6645-01-323-1956
NSN 4140-00-910-0295
NSN 6150-01-156-9298
NSN 6650-00-181-1446
NSN 7035-00-140-0474
NSN 5950-01-483-6849
NSN 5960-01-185-4216
NSN 2925-00-526-4541
NSN 5960-01-362-2369
NSN 5985-01-030-2382
NSN 6620-01-627-0478