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 7035-01-616-5972
NSN 6650-01-422-1037
NSN 6650-01-626-2889
NSN 6610-00-202-5481
NSN 5935-01-387-2875
NSN 5998-01-569-9797
NSN 2925-01-620-9673
NSN 6685-01-114-5558
NSN 5990-00-484-3189
NSN 6645-01-479-0804
NSN 5920-01-391-5666
NSN 4140-00-671-4532