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 5998-01-531-4572
NSN 6135-01-604-8739
NSN 5915-00-686-9149
NSN 5950-01-249-0987
NSN 6320-01-612-7035
NSN 5990-01-124-8412
NSN 5895-01-462-5271
NSN 2925-00-253-1655
NSN 5945-01-260-1116
NSN 5990-00-578-8850
NSN 5935-01-248-3716
NSN 5998-01-389-3414