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 6150-01-020-7881
NSN 5985-01-134-2595
NSN 4140-00-241-0065
NSN 5945-00-737-0633
NSN 6645-01-268-0544
NSN 5855-01-617-8808
NSN 5996-00-553-6477
NSN 5998-01-408-6921
NSN 5905-01-243-9170
NSN 5930-01-377-4318
NSN 5925-01-235-2060
NSN 6685-01-426-4798