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 6105-01-333-6630
NSN 5925-01-524-4718
NSN 6135-01-607-5478
NSN 5930-00-764-4687
NSN 5950-01-367-0445
NSN 5998-00-492-4699
NSN 6105-00-299-0673
NSN 6105-00-139-5244
NSN 5990-01-384-2697
NSN 6240-01-071-2127
NSN 5990-00-234-0119
NSN 6650-01-059-8941