5/32 1 X 19 stainless steel is the correct cable for your boat. Sometimes the terms cable and wire rope are used interchangably, though technically 1 X 19 is not considered flexible and therefore is a cable rather than a wire rope.

I would strongly advise you to make sure you are getting Cable made in the US or EU. Product made in China can vary in quality. They sometimes let off-spec product pass through inspection to meet production quotas. Not that they are any less scrupulus than domestic suppliers, it's just that with a domestic supplier you have tracability and accountability. On top of that, they ARE less scrupulus than domestic suppliers. China's business culture is where we were during the 'robber baron' period about 120 years ago. It will get better for sure, but now's not the time to trust such a critical item to such a culture.

IMO

Jimbo