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 5905-00-959-2935
NSN 6240-00-674-8344
NSN 5996-00-524-3384
NSN 6105-00-770-3651
NSN 6105-01-470-6755
NSN 5930-01-382-6967
NSN 5925-01-463-8594
NSN 6645-00-070-6358
NSN 6135-00-756-6149
NSN 6240-00-319-4549
NSN 5998-01-592-2771
NSN 6145-01-322-5000