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 6150-01-168-8860
NSN 5950-01-066-0929
NSN 5985-00-894-1251
NSN 6240-01-016-8140
NSN 5996-01-619-4966
NSN 6610-01-462-5980
NSN 6620-00-713-7548
NSN 6240-01-121-4124
NSN 5975-00-905-5194
NSN 5960-00-723-9815
NSN 6620-00-939-8902
NSN 6105-01-463-2387