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 5945-00-775-7192
NSN 5990-01-171-9304
NSN 6610-01-159-0438
NSN 5935-01-158-5376
NSN 5950-00-081-8787
NSN 5998-01-282-6566
NSN 5950-00-571-4765
NSN 5990-01-161-4625
NSN 6645-01-304-0889
NSN 6110-01-097-0790
NSN 6220-00-920-8225
NSN 5895-00-986-3285