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 6135-01-175-7311
NSN 5945-01-403-2800
NSN 6135-01-559-1578
NSN 7035-01-364-8454
NSN 6620-00-038-5343
NSN 5905-01-318-1674
NSN 5945-01-453-8873
NSN 6320-01-426-1324
NSN 6620-00-523-9437
NSN 5985-00-042-5536
NSN 6150-01-314-1514
NSN 6645-01-433-1398