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 6240-01-461-3129
NSN 5998-00-393-3695
NSN 5996-01-555-7690
NSN 5935-00-768-8524
NSN 5925-00-009-6341
NSN 5990-00-985-1334
NSN 5960-01-302-7583
NSN 4140-01-525-1190
NSN 6135-01-645-4653
NSN 6105-01-392-1539
NSN 6130-00-450-2231
NSN 5920-01-323-6369