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 2925-00-136-2612
NSN 6130-00-277-7321
NSN 5996-01-093-0637
NSN 5930-01-334-3372
NSN 5930-01-440-0167
NSN 5895-01-303-8375
NSN 6685-01-551-6534
NSN 6240-00-141-6143
NSN 5920-00-168-9138
NSN 6685-00-451-3047
NSN 6650-01-384-7867
NSN 5998-01-252-4850