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 4140-01-380-6690
NSN 5905-01-633-9784
NSN 6105-01-181-6304
NSN 5945-01-459-7700
NSN 6645-01-389-8312
NSN 6150-00-038-5009
NSN 5975-00-908-1556
NSN 5920-01-084-2508
NSN 5996-01-426-1920
NSN 5985-01-100-2112
NSN 5930-00-244-7365
NSN 5945-00-070-9317