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 5998-01-604-0909
NSN 5975-00-175-0586
NSN 6105-01-519-8003
NSN 5996-01-007-2147
NSN 7035-01-232-7263
NSN 5965-01-168-3255
NSN 6645-01-522-0154
NSN 6135-00-752-1589
NSN 5996-00-167-4736
NSN 5975-01-388-9789
NSN 5985-00-170-9097
NSN 6650-00-485-7962