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 6610-01-384-1587
NSN 5895-00-408-3853
NSN 6620-00-506-0112
NSN 5895-01-188-8820
NSN 5855-01-501-5683
NSN 5930-00-285-8727
NSN 5990-01-219-2703
NSN 6220-00-013-9523
NSN 6150-01-446-3586
NSN 5945-00-540-8178
NSN 2925-00-964-7128
NSN 5835-01-118-4690