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 5999-01-433-8637
NSN 5835-00-856-2437
NSN 5835-01-178-4154
NSN 5975-01-092-5437
NSN 5996-01-336-7240
NSN 4140-01-452-9428
NSN 6610-01-366-8007
NSN 5999-01-644-2543
NSN 5960-00-266-6741
NSN 6240-00-110-9414
NSN 6150-00-859-6815
NSN 5945-00-684-8160