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 5975-00-459-4172
NSN 6110-00-363-3974
NSN 5965-00-471-5018
NSN 5998-01-171-8616
NSN 6320-01-459-6992
NSN 5950-01-521-3675
NSN 6240-00-246-5060
NSN 6220-01-157-9062
NSN 5895-00-564-5722
NSN 5985-01-294-1473
NSN 5930-00-089-2203
NSN 4140-01-372-7632