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 6645-01-345-6828
NSN 6145-01-645-2764
NSN 6110-00-079-8508
NSN 5945-00-963-7864
NSN 5950-01-175-8397
NSN 6135-00-803-3012
NSN 6130-00-153-3136
NSN 6105-00-012-8278
NSN 5835-00-532-5910
NSN 6320-00-925-0558
NSN 5945-01-534-7275
NSN 6135-01-481-5109