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 5998-00-158-3192
NSN 6145-01-181-3766
NSN 5935-00-019-6210
NSN 5999-01-563-9608
NSN 6685-01-456-0130
NSN 5835-00-119-5585
NSN 6620-00-809-4481
NSN 6645-00-363-9775
NSN 5965-01-147-5847
NSN 6130-00-156-3029
NSN 5920-01-408-0658
NSN 6130-00-455-8371