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 5990-00-402-7721
NSN 6645-01-252-8870
NSN 6610-00-081-2365
NSN 5855-01-473-6076
NSN 6105-00-777-2560
NSN 5935-00-647-4020
NSN 5930-01-030-5248
NSN 5996-00-038-8276
NSN 5996-00-217-2654
NSN 5915-01-053-6529
NSN 6650-01-256-9151
NSN 5935-01-164-6770