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 6610-01-144-0020
NSN 5975-01-023-6897
NSN 6320-00-539-9283
NSN 5905-00-858-8216
NSN 5905-00-233-6908
NSN 7035-00-283-3112
NSN 5935-00-526-0643
NSN 6150-01-367-3093
NSN 4140-01-058-3016
NSN 5925-00-020-8917
NSN 6145-01-658-5730
NSN 6610-01-487-6843