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 5910-00-400-8642
NSN 5905-01-267-7809
NSN 6650-00-242-7961
NSN 5905-01-634-0595
NSN 6150-01-159-3933
NSN 5925-00-912-6493
NSN 6620-00-454-3570
NSN 5915-01-632-7216
NSN 6110-00-523-2834
NSN 5920-00-271-3217
NSN 5925-01-573-7284
NSN 5935-01-266-5444