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 6610-01-268-4191
NSN 7035-01-100-2796
NSN 5998-01-101-0664
NSN 6135-01-589-0333
NSN 6685-01-443-8915
NSN 6620-01-633-8443
NSN 5990-01-565-2226
NSN 6650-01-181-6037
NSN 6685-00-753-7668
NSN 5998-01-268-9317
NSN 5945-01-053-5550
NSN 6650-01-284-6536