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 5920-00-701-1200
NSN 5998-01-440-7568
NSN 5915-00-170-9744
NSN 5999-00-115-8357
NSN 6130-00-960-9158
NSN 5925-00-964-7901
NSN 5965-01-230-2351
NSN 6130-01-131-3372
NSN 5990-01-364-1942
NSN 6320-01-487-0336
NSN 6610-01-462-9439
NSN 6320-00-790-4844