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 6645-01-518-4296
NSN 6645-01-240-5499
NSN 5935-00-959-2713
NSN 5999-00-172-2079
NSN 5920-01-134-7853
NSN 5950-01-024-9461
NSN 5960-01-425-1454
NSN 5935-00-183-9631
NSN 6145-01-400-3838
NSN 5935-00-959-5668
NSN 6610-00-931-3656
NSN 6610-01-250-2811