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 5999-00-761-6685
NSN 6105-01-235-7080
NSN 5905-01-481-5049
NSN 6320-01-607-0347
NSN 5910-01-390-4315
NSN 6240-00-635-9953
NSN 6150-00-829-1173
NSN 5835-01-461-8184
NSN 5965-01-272-4199
NSN 5855-01-339-1718
NSN 6135-00-835-7211
NSN 6240-01-432-7926