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 5996-00-156-5010
NSN 5999-01-020-5001
NSN 5930-01-198-7920
NSN 6645-00-888-5820
NSN 6130-00-074-5324
NSN 5996-00-943-7685
NSN 5998-01-135-8993
NSN 6610-00-350-1091
NSN 6220-01-146-8233
NSN 5920-01-494-0303
NSN 6620-00-483-1961
NSN 5990-01-544-4360