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 5835-01-162-8353
NSN 6645-01-217-2888
NSN 6105-00-141-5598
NSN 5935-01-408-6558
NSN 6685-00-242-2224
NSN 5920-01-367-5791
NSN 5835-00-711-3371
NSN 4140-01-179-0403
NSN 5975-01-254-1684
NSN 6650-00-423-2178
NSN 5930-00-843-0830
NSN 6130-01-541-4979