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 5925-01-487-6456
NSN 5975-00-229-0898
NSN 5960-01-481-8051
NSN 6240-00-292-3237
NSN 6650-01-302-6403
NSN 6650-00-971-5054
NSN 6135-01-645-4653
NSN 2925-00-631-0548
NSN 6645-00-456-7653
NSN 6105-01-121-0520
NSN 5999-01-244-4979
NSN 5915-00-773-2333