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 5975-01-502-6167
NSN 5835-00-055-0953
NSN 5920-00-087-2650
NSN 6645-00-232-4070
NSN 5965-01-037-8333
NSN 5895-01-157-1685
NSN 5930-00-231-5538
NSN 5999-00-472-3494
NSN 2925-01-343-5887
NSN 5915-00-971-0154
NSN 5998-01-386-5429
NSN 5975-00-981-2486