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 6320-01-039-5467
NSN 6240-01-484-0335
NSN 6610-01-069-1156
NSN 5998-01-597-3191
NSN 4140-01-556-0762
NSN 6320-01-086-2602
NSN 5990-01-452-0911
NSN 5950-00-369-1593
NSN 6320-01-522-0318
NSN 6105-00-372-4716
NSN 4140-01-318-3087
NSN 5960-00-949-5328