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 6610-00-949-6052
NSN 4140-01-415-3363
NSN 5975-01-421-0761
NSN 5985-01-117-0776
NSN 5935-00-226-0507
NSN 6645-00-758-4567
NSN 5930-01-634-0659
NSN 5996-01-023-7896
NSN 5910-00-182-7619
NSN 5985-01-127-9887
NSN 6650-01-411-6292
NSN 5910-01-558-6794