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 5905-01-154-6767
NSN 5905-01-462-9598
NSN 6145-00-087-7908
NSN 5920-00-504-8634
NSN 6645-01-449-1452
NSN 6240-01-097-4722
NSN 6620-01-314-3635
NSN 6145-01-334-1677
NSN 5835-00-415-6421
NSN 6110-00-188-9874
NSN 5930-01-429-0379
NSN 6685-01-015-4907