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 5998-01-099-8302
NSN 5930-01-041-2667
NSN 5990-01-334-8634
NSN 6685-01-578-6664
NSN 5960-00-215-5884
NSN 7035-00-417-2967
NSN 5930-01-254-7731
NSN 5975-00-051-7337
NSN 5945-01-407-2552
NSN 5915-01-027-0800
NSN 6220-00-318-1742
NSN 6610-01-413-3095