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 6645-01-116-3423
NSN 6150-01-192-3991
NSN 5835-00-155-1379
NSN 5920-01-649-9181
NSN 6240-01-346-1146
NSN 5910-00-205-2430
NSN 5996-00-357-0993
NSN 6150-01-571-7719
NSN 6620-01-029-6706
NSN 5990-01-159-5988
NSN 6240-00-292-3237
NSN 5999-00-911-8487