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 5835-01-384-3206
NSN 6650-00-330-0108
NSN 5915-00-156-7877
NSN 5930-01-621-8234
NSN 7035-01-183-7550
NSN 6685-01-167-6662
NSN 5895-01-168-8229
NSN 6240-01-618-0696
NSN 5950-01-186-6726
NSN 5920-00-225-8893
NSN 6145-00-141-8095
NSN 6610-01-417-6336