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 6220-01-661-1723
NSN 5985-01-337-7683
NSN 6135-01-597-7685
NSN 6130-00-409-2230
NSN 5999-01-166-5011
NSN 6110-01-513-4718
NSN 6110-00-614-9218
NSN 5945-01-628-8554
NSN 5910-00-069-9969
NSN 5925-01-033-0458
NSN 6685-01-379-9882
NSN 2925-01-642-3255