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 6145-01-448-0543
NSN 6150-00-201-3988
NSN 6135-01-174-8057
NSN 5910-01-633-9963
NSN 5855-01-112-7725
NSN 5950-00-328-2693
NSN 4140-01-174-0646
NSN 5915-00-592-8260
NSN 7035-01-505-2593
NSN 6220-00-160-9372
NSN 6105-00-665-8581
NSN 5965-01-406-3156