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 5975-01-502-9421
NSN 5975-01-323-7058
NSN 5930-01-452-3630
NSN 5920-01-401-5315
NSN 5950-00-232-8057
NSN 7035-01-398-9581
NSN 5905-01-596-3936
NSN 6220-00-935-6881
NSN 5905-01-464-3541
NSN 5998-01-015-1822
NSN 5996-01-432-0117
NSN 6145-00-542-7980