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 6220-00-834-1852
NSN 5920-01-484-0990
NSN 5855-01-417-3250
NSN 6685-01-264-4967
NSN 5945-01-437-9115
NSN 6320-01-125-3361
NSN 7035-01-454-3284
NSN 6220-00-142-5115
NSN 5975-00-949-0179
NSN 6685-01-044-0702
NSN 6620-00-849-0110
NSN 6130-01-212-3445