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 5915-01-338-0771
NSN 6685-00-981-5134
NSN 4140-01-388-2007
NSN 5998-00-957-1126
NSN 6150-01-212-3003
NSN 5990-01-621-6969
NSN 5930-01-536-0479
NSN 5905-00-952-3726
NSN 6135-01-495-0933
NSN 5965-01-303-6105
NSN 5996-01-290-4844
NSN 5990-01-472-2447