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 5930-00-974-1850
NSN 5990-00-252-1702
NSN 5985-01-323-8390
NSN 5910-01-178-9577
NSN 6685-01-322-8516
NSN 5945-01-138-7862
NSN 6130-01-126-4603
NSN 5985-01-598-5434
NSN 6145-01-417-8635
NSN 6105-00-959-2330
NSN 4140-00-435-5607
NSN 5930-01-056-2218