Government regulated gas can spouts are unworkable safety harzards. Some after market spouts are available, but which ones are best for getting gas into a fuel tank?
I visited a local hardware store who had several replacement spouts. None fit my standard spout thread.
That leaves me less than confident that an amazon order would have matching thread.
Go with the 2.5 gal or 3 gal low rise cans they wont fall over in back of truck as easy, you can get them from amazon or your cycle shop, many shops will match amazon prices if you ask them.