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 5835-01-527-2629
NSN 6150-01-466-4851
NSN 5895-00-488-6248
NSN 6220-01-496-1925
NSN 5985-00-314-0831
NSN 6130-01-116-9582
NSN 6320-01-343-5846
NSN 6685-01-428-3943
NSN 5985-01-204-9040
NSN 6645-01-119-1583
NSN 6320-01-376-2778
NSN 5998-01-588-0777