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.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6150-01-415-5625
NSN 5990-00-779-8268
NSN 7035-01-266-3490
NSN 5905-01-613-2119
NSN 5915-01-066-4791
NSN 5998-01-205-3092
NSN 5855-00-631-4565
NSN 6320-01-491-0327
NSN 5999-01-601-3290
NSN 5910-01-421-4153
NSN 6650-01-398-1117
NSN 5998-01-481-3907