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 5990-00-402-7721
NSN 6240-00-905-6050
NSN 6620-01-274-3423
NSN 6150-00-811-7703
NSN 4140-01-010-5645
NSN 6150-01-227-4477
NSN 5855-00-631-4565
NSN 5835-01-346-9575
NSN 5915-00-490-3739
NSN 5855-00-446-5921
NSN 6145-00-841-8308
NSN 5996-01-370-4940