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 5905-01-120-4120
NSN 6145-00-558-1834
NSN 6610-01-613-5689
NSN 6110-00-924-8004
NSN 5998-00-350-0939
NSN 5975-01-585-5626
NSN 6110-01-114-3200
NSN 6105-01-487-7484
NSN 5975-00-683-2743
NSN 5925-00-177-4654
NSN 5895-01-467-3584
NSN 5895-00-284-1901