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 5950-00-824-0604
NSN 5945-00-639-9848
NSN 6135-01-142-6456
NSN 6145-01-156-6546
NSN 5910-01-468-4570
NSN 5945-00-094-0583
NSN 4140-01-367-8058
NSN 5990-00-697-8883
NSN 5910-00-816-7303
NSN 5945-01-592-2115
NSN 6105-01-375-6572
NSN 6685-00-995-9385