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 6110-01-633-9660
NSN 6130-01-631-1586
NSN 5998-01-322-6437
NSN 5905-01-138-6180
NSN 6145-01-272-6825
NSN 5998-00-986-1708
NSN 5965-00-088-1722
NSN 5920-00-665-3973
NSN 6650-00-170-5095
NSN 5905-00-909-1778
NSN 7035-01-200-4751
NSN 6110-01-146-4183