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 2925-01-014-0118
NSN 5990-00-444-0612
NSN 5920-00-869-6403
NSN 5895-01-317-9388
NSN 5935-00-929-4067
NSN 5965-01-231-9125
NSN 6650-00-948-3647
NSN 5835-01-485-0210
NSN 4140-00-093-7679
NSN 5996-00-578-3278
NSN 6240-00-269-3346
NSN 5945-00-553-9886