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 5895-01-443-7577
NSN 5930-01-316-0977
NSN 6150-01-600-6874
NSN 5855-00-586-6255
NSN 5945-01-538-1618
NSN 6620-00-246-5159
NSN 5998-01-536-1552
NSN 2925-01-455-2558
NSN 5960-00-287-9932
NSN 5920-01-371-9213
NSN 5985-01-375-6576
NSN 6620-00-513-0738