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 6645-00-108-6479
NSN 5975-00-409-0791
NSN 5835-01-388-5198
NSN 6130-01-330-1147
NSN 5950-01-653-3484
NSN 6320-00-270-8222
NSN 6240-01-465-3053
NSN 5996-01-541-4974
NSN 5915-01-648-2126
NSN 6320-01-608-1935
NSN 5915-00-008-6804
NSN 5990-01-544-4360