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 5905-01-286-7049
NSN 5975-01-246-2099
NSN 5915-00-269-4463
NSN 6145-01-620-8037
NSN 6240-01-068-3491
NSN 5998-00-332-9558
NSN 5945-01-471-3407
NSN 6110-01-116-2353
NSN 6105-01-100-3129
NSN 4140-00-138-4139
NSN 5960-01-044-4902
NSN 6220-00-900-5302