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 6610-01-062-5178
NSN 5920-01-241-3227
NSN 6150-01-058-6591
NSN 5910-00-955-9901
NSN 5996-01-200-0363
NSN 5975-01-061-9919
NSN 5835-01-133-6485
NSN 5910-01-029-3959
NSN 5895-01-346-9018
NSN 6110-01-645-5421
NSN 5895-00-079-2055
NSN 6620-00-957-9325