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 5930-00-824-5484
NSN 5910-01-066-6271
NSN 5985-00-835-1218
NSN 7035-00-455-7666
NSN 5915-01-399-5796
NSN 5996-01-110-7706
NSN 5930-00-299-7623
NSN 5935-01-134-5154
NSN 6105-01-482-6301
NSN 5960-00-443-1483
NSN 5960-01-570-8605
NSN 6650-00-834-9062