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 6610-00-904-4839
NSN 6610-00-395-2574
NSN 6150-01-352-6474
NSN 6620-00-079-0311
NSN 6130-01-160-8615
NSN 7035-01-563-4801
NSN 5835-01-149-6855
NSN 5835-01-485-0210
NSN 5985-00-166-8119
NSN 2925-01-534-7314
NSN 5998-01-111-9735
NSN 6240-01-392-0458