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 6320-01-321-7658
NSN 6150-00-702-9009
NSN 6150-01-254-1664
NSN 5985-01-476-6872
NSN 5925-01-168-9670
NSN 5930-00-203-4430
NSN 5935-01-485-6361
NSN 5960-01-412-0619
NSN 6685-00-724-2962
NSN 5960-01-617-6345
NSN 6220-00-052-4446
NSN 4140-01-590-1632