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 2925-01-191-9668
NSN 6240-00-086-6504
NSN 5915-01-040-2721
NSN 4140-01-634-0330
NSN 6135-00-803-3012
NSN 7035-01-191-2822
NSN 5855-01-229-3864
NSN 5945-00-091-8870
NSN 6240-01-553-3253
NSN 5910-01-333-8837
NSN 5996-01-352-0366
NSN 6145-00-504-5221