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 6240-01-344-4826
NSN 5998-00-400-1864
NSN 5930-00-025-6295
NSN 6145-01-441-4239
NSN 5855-00-446-5921
NSN 5925-01-469-6667
NSN 2925-00-862-8550
NSN 6145-01-310-4023
NSN 6150-00-583-9054
NSN 6320-01-103-1655
NSN 5930-00-983-8003
NSN 5950-01-132-8419