Identify ac adapter pin type and size

Hi i bought a Toshiba SD-BP900S bluray portable player from japan. I am trying to buy an AC adapter that will work in the US. I bought an adapter online, voltage (12V), amp (1.5a) and center positive polarity-- all specs I need but I forgot to consider the pin tip and unfortunately, it does not match. Based on my research, if it’s correct, it is called “core” tip (see photo attached). It has a tiny pin inside. I measured with a ruler and got 6mm (outside diameter) and 4mm (inside). I searched online but there isn’t much info on this device’s adapter that works in the US nor any US adapter with this pin size.

So please help me find an US adapter that works for this item. Thank you!!

Correction- 5mm outside

Hello,
Welcome to the DigiKey TechForum. I wasn’t able to find an AC/DC wall adapter with the output connector you need and with no information on the barrel connector size I’m not able to find a replacement connector.