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 5990-00-943-7787
NSN 4140-01-094-8334
NSN 5905-01-064-4030
NSN 6240-01-595-3594
NSN 5905-01-566-0313
NSN 5935-00-150-1189
NSN 6620-01-467-2111
NSN 6110-00-401-7890
NSN 5965-01-536-8898
NSN 5990-00-446-0518
NSN 5975-01-424-2011
NSN 5999-01-457-4737