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 6150-01-556-7388
NSN 5985-00-226-2118
NSN 6620-01-062-1662
NSN 6650-00-104-5368
NSN 5990-01-251-0078
NSN 5975-00-260-1336
NSN 6620-00-021-2246
NSN 4140-01-598-1549
NSN 5905-01-615-7394
NSN 6685-01-370-6725
NSN 5985-01-371-5027
NSN 5975-00-471-0625