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 6685-00-141-4300
NSN 6145-00-468-8534
NSN 5945-01-464-3854
NSN 5985-00-960-5560
NSN 6650-00-098-6128
NSN 6135-01-584-0941
NSN 5915-01-471-6493
NSN 6145-00-160-7796
NSN 6135-00-942-7970
NSN 5998-00-969-9869
NSN 5950-01-435-5980
NSN 5999-00-803-7291