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 6240-01-469-2957
NSN 5960-01-604-1158
NSN 6645-01-386-4588
NSN 5950-01-623-5625
NSN 5998-00-219-4186
NSN 6610-01-422-7646
NSN 5915-01-607-0675
NSN 6240-01-247-6212
NSN 6150-00-269-5017
NSN 5965-01-419-8200
NSN 5930-01-452-0608
NSN 5935-01-095-9905