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 6685-00-250-8867
NSN 5945-00-218-0012
NSN 6130-00-309-2388
NSN 6685-01-033-4648
NSN 5999-01-009-0372
NSN 5998-01-379-1654
NSN 6150-01-421-2543
NSN 4140-00-410-7868
NSN 5925-01-609-3461
NSN 6620-01-149-2842
NSN 6110-01-592-9155
NSN 5999-01-327-1491