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 6150-01-640-9119
NSN 5915-01-127-1601
NSN 5905-00-472-2002
NSN 6220-01-422-3602
NSN 5915-01-418-8805
NSN 5835-00-707-6266
NSN 6650-00-861-6208
NSN 5945-01-467-3236
NSN 4140-01-259-2715
NSN 6135-01-252-0315
NSN 5920-01-383-7003
NSN 5990-01-074-6549