Not much in it, the AC belt measures about 36 inches in circumference(In other words if you cut the belt and laid it out it would measure 36 inch long) My engine is still hot; difficult to measure the power steering (Vane pump) belt, looks slightly smaller. The part No`s in your post don’t seem to relate to the Toyota part No`s. They could be the belt manufactures part No`s.
The No`s in the photo below are only diagram No`s not Toyota part No`s.