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 5915-01-279-1814
NSN 6110-00-616-4300
NSN 6145-01-248-7887
NSN 6610-00-862-8540
NSN 5965-01-443-3000
NSN 5920-01-560-8209
NSN 6240-01-579-7782
NSN 6320-01-317-7312
NSN 6150-01-193-3520
NSN 5920-01-409-2830
NSN 5975-01-531-3919
NSN 5920-01-543-6348