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 6645-01-562-3960
NSN 6240-00-832-3909
NSN 5998-00-228-4892
NSN 5965-01-439-0793
NSN 5965-01-632-9334
NSN 5915-01-570-7410
NSN 5999-01-492-5707
NSN 5930-01-046-5176
NSN 2925-01-629-9416
NSN 5975-01-487-3387
NSN 5930-00-136-7126
NSN 5935-01-558-8464