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 5985-01-574-0756
NSN 5910-01-236-1461
NSN 6150-00-448-5532
NSN 5996-01-039-2206
NSN 6135-00-643-4843
NSN 6610-00-168-2200
NSN 5999-01-466-1144
NSN 4140-00-293-7847
NSN 5835-01-355-3654
NSN 6240-01-287-1328
NSN 5835-01-592-2350
NSN 6240-00-765-8443