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 5965-01-660-9941
NSN 5930-01-481-9162
NSN 5920-01-058-4961
NSN 7035-01-555-5260
NSN 4140-01-394-6982
NSN 6685-01-055-7384
NSN 5996-00-703-7776
NSN 6650-01-520-6130
NSN 6110-01-273-0867
NSN 5930-00-206-0210
NSN 6105-01-528-8027
NSN 6145-00-244-8152