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 5915-00-939-7518
NSN 6145-00-187-6405
NSN 5990-01-203-4075
NSN 5945-00-171-4484
NSN 5998-01-648-3533
NSN 5905-01-318-1674
NSN 2925-01-455-2558
NSN 6320-01-462-3555
NSN 5996-01-545-5216
NSN 5999-01-435-9385
NSN 5945-01-534-3664
NSN 6610-00-245-6177