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 5920-01-061-4608
NSN 5996-01-068-7656
NSN 6220-01-547-3775
NSN 4140-01-329-3428
NSN 6130-01-348-2494
NSN 6620-00-490-3978
NSN 6650-00-446-8787
NSN 5950-00-843-5556
NSN 5950-01-386-6481
NSN 5930-01-182-0302
NSN 5895-01-452-0805
NSN 2925-01-620-9673