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 6610-01-227-7221
NSN 7035-00-145-9138
NSN 7035-01-287-9817
NSN 5925-00-102-8010
NSN 2925-01-458-5808
NSN 5835-00-466-8544
NSN 5965-01-322-8136
NSN 5945-01-535-9518
NSN 6105-00-146-1568
NSN 5975-00-292-3250
NSN 5960-01-118-3394
NSN 6240-01-423-8642