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 5990-01-120-1910
NSN 6320-00-731-6134
NSN 5930-00-170-4541
NSN 5998-00-726-5875
NSN 5915-00-550-7073
NSN 6320-00-731-6134
NSN 5895-01-453-5721
NSN 2925-01-283-6740
NSN 2925-01-421-0068
NSN 4140-01-346-8219
NSN 6145-01-644-0534
NSN 5950-00-062-7139