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 5915-00-914-5341
NSN 5965-01-341-4036
NSN 5835-01-631-7390
NSN 5930-01-067-8332
NSN 5985-00-244-7535
NSN 5945-01-287-7576
NSN 2925-00-989-0523
NSN 7035-01-659-2776
NSN 5999-00-195-2331
NSN 6105-01-056-7511
NSN 5965-01-301-2553
NSN 6650-01-376-6965