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 5895-01-634-0630
NSN 5930-01-116-7123
NSN 5930-00-406-7372
NSN 6240-01-317-8783
NSN 5985-00-858-1290
NSN 6135-01-536-4810
NSN 6645-01-613-2053
NSN 6610-01-533-2158
NSN 5915-00-779-1257
NSN 5895-00-204-4358
NSN 5999-01-445-7544
NSN 5835-01-384-3206