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 5960-01-599-4726
NSN 5925-01-152-6988
NSN 5990-01-425-2175
NSN 5975-01-493-9792
NSN 5990-00-125-5036
NSN 6145-00-490-9180
NSN 5996-01-536-8174
NSN 6650-00-179-8970
NSN 5920-00-518-6842
NSN 5905-01-504-9651
NSN 5965-01-512-9925
NSN 7035-01-271-1643