What is the diameter of an AN470AD4-4 rivet?

The diameter of an AN470AD4-4 rivet is classified based on its number designation. In this case, the "4" in the designation indicates the diameter of the rivet in 32nds of an inch. Since the "4" corresponds to 4/32 inches, this simplifies to 1/8 inch. Consequently, the correct answer is that the diameter of the AN470AD4-4 rivet is indeed 4/32 inches (or 1/8 inch). Understanding how to interpret these rivet designations is crucial in aircraft maintenance and assembly, ensuring that the correct fasteners are used for structural integrity.