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 5975-01-143-7753
NSN 5975-00-571-8467
NSN 6620-01-559-9116
NSN 5965-00-238-0473
NSN 5905-00-734-6386
NSN 6130-01-278-9305
NSN 6240-00-079-0112
NSN 6135-00-583-3966
NSN 5975-01-462-6424
NSN 5990-01-498-0641
NSN 2925-01-197-7864
NSN 6145-00-581-1629