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 6105-00-477-2187
NSN 5835-00-905-7165
NSN 6105-01-417-8932
NSN 5950-01-418-5035
NSN 5915-00-755-4181
NSN 5996-01-015-2513
NSN 6105-01-317-3657
NSN 5998-01-284-2920
NSN 6150-00-753-3950
NSN 6320-01-428-9205
NSN 5965-01-415-9196
NSN 4140-01-299-3357