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 4140-01-486-1436
NSN 6610-00-242-0609
NSN 5920-01-152-1949
NSN 5930-01-106-2481
NSN 6610-00-186-9180
NSN 5935-01-306-5469
NSN 5905-00-883-2473
NSN 5930-01-090-0223
NSN 5996-00-172-7553
NSN 6650-01-068-3687
NSN 6685-01-510-9225
NSN 5998-01-320-8461