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 6150-00-899-5690
NSN 4140-00-408-9989
NSN 5895-00-149-1830
NSN 7035-01-633-9537
NSN 6110-00-155-3321
NSN 6145-01-218-4097
NSN 5895-00-457-0571
NSN 2925-01-118-6125
NSN 6105-01-240-7070
NSN 6610-00-726-6076
NSN 6645-01-518-1107
NSN 6150-01-185-1861