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 5855-00-132-4898
NSN 6220-00-604-4176
NSN 5920-01-586-5328
NSN 6110-01-566-8036
NSN 6320-00-228-5678
NSN 5965-00-594-3115
NSN 5835-01-575-5053
NSN 6105-00-362-1361
NSN 6110-01-129-9206
NSN 6645-01-400-2119
NSN 6105-01-250-1927
NSN 5990-01-067-6015