Diezel BLUE LED replacements

[Goober]

I need to replace one of the blue LED's in my einstein. I bought a 3mm and it is to large, there only seems to be two major sizes 3mm and 5mm readily available on the market.

Does anyone know the exact LED that fits?

thanks

Martin

 

[Peter Diezel]

All LED´s are 5mm, current 20mA max