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 5996-01-487-3733
NSN 6610-00-173-4011
NSN 6320-01-558-2141
NSN 4140-01-229-8533
NSN 5835-00-477-3162
NSN 6135-01-132-6310
NSN 5910-01-278-3049
NSN 5905-01-047-4640
NSN 5990-00-522-3425
NSN 6220-01-534-6695
NSN 6610-01-167-8747
NSN 6610-01-016-9999