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 5925-01-097-1543
NSN 5855-01-256-2551
NSN 6150-01-040-1541
NSN 4140-00-606-9453
NSN 5835-01-442-6482
NSN 5990-01-100-7231
NSN 5915-01-350-3696
NSN 6240-01-055-5193
NSN 6610-00-132-3387
NSN 6145-00-521-0001
NSN 2925-01-591-4030
NSN 2925-00-793-6183