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 5930-01-219-2859
NSN 5998-00-365-2001
NSN 6110-00-787-6070
NSN 6130-01-272-9765
NSN 5950-01-194-1572
NSN 5999-01-542-4922
NSN 6685-00-824-0477
NSN 5975-00-318-4623
NSN 6130-00-170-4844
NSN 5945-01-538-7147
NSN 5915-00-400-3372
NSN 6240-01-321-9552