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 6110-00-350-6192
NSN 5905-01-359-5469
NSN 6150-01-243-5547
NSN 6610-01-515-3363
NSN 5905-00-113-3613
NSN 5975-00-256-5556
NSN 6685-01-066-2901
NSN 6645-01-248-3123
NSN 6150-01-087-1549
NSN 2925-01-101-4655
NSN 5855-01-417-3250
NSN 5998-00-078-4297