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 5905-01-089-7055
NSN 6130-01-144-9966
NSN 6240-01-353-5029
NSN 5920-01-399-5998
NSN 6645-00-998-7820
NSN 6320-01-585-8468
NSN 4140-01-317-3559
NSN 6145-01-620-2743
NSN 7035-00-235-3529
NSN 6135-01-475-2428
NSN 2925-00-194-7407
NSN 7035-01-063-0453