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 5920-00-611-6728
NSN 6220-00-985-0847
NSN 6130-01-634-0603
NSN 6620-01-571-7727
NSN 5996-01-435-7592
NSN 5996-00-977-1101
NSN 4140-01-116-1864
NSN 5930-00-333-6127
NSN 5915-00-494-7280
NSN 6620-01-252-9626
NSN 6130-01-634-0603
NSN 6610-00-641-3015