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 4140-01-172-4637
NSN 5905-01-622-7674
NSN 2925-01-016-3111
NSN 5996-01-327-0220
NSN 5945-00-723-6864
NSN 6240-01-420-2364
NSN 6320-01-149-2808
NSN 6135-00-613-1068
NSN 6130-01-519-3082
NSN 5960-00-922-7941
NSN 5855-00-256-5562
NSN 5925-01-407-4105