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 5996-00-645-9957
NSN 6220-00-237-5964
NSN 5920-00-584-4592
NSN 7035-01-546-4417
NSN 5935-00-687-2335
NSN 6145-01-634-0388
NSN 5925-01-447-2968
NSN 6685-00-540-9017
NSN 6130-01-626-6069
NSN 6685-00-204-6037
NSN 6685-01-389-3950
NSN 6240-01-579-3213