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 5965-01-132-4018
NSN 6145-01-646-2383
NSN 6240-01-282-0615
NSN 5985-01-554-1865
NSN 5925-00-284-3726
NSN 5835-01-043-1576
NSN 6105-01-100-0123
NSN 6620-01-552-2889
NSN 5835-00-583-1316
NSN 6150-01-102-4997
NSN 6320-00-937-5625
NSN 5975-01-114-1519