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 6130-00-239-0230
NSN 6110-00-672-0155
NSN 5996-00-518-0460
NSN 5915-01-185-9116
NSN 5835-01-568-7796
NSN 5905-01-118-6330
NSN 5990-01-543-6301
NSN 5999-01-172-6262
NSN 4140-00-128-8072
NSN 2925-01-439-2650
NSN 5945-00-692-2183
NSN 6110-00-594-7640