here's a number
Chuck,I suspect they are the same for all vendors, but mine came from Sailnet (if it matters) and were:Bomar/Gray replacement portlights and the code was 512AD (two additional letters indicate whether clear or smoked lens).Check the Sailnet website and download the catalog. It takes a bit of looking but you can find them.Or give them a call, which is what I found simpler.They run around $85 at Sailnet.The sales person (John) was very knowledgable... My most recent ourchase was for the larger size, but I have both stacked up and awaiting my next trip to the boat.Any hints about installation not already coverd in recent posts?Good luck,Sanders