wing drain valve part replacement

[Badmoonraising]

I have been going through the torturous task of stripping sealant from my tanks. This became necessary as previous owners simply had more sealant added to deal with leaks. The drain holes  were blocked with sealant which means I could never drain water lower the top of the collar. I will send more photos and details now. 

While I'm at the tank repair and reseal,  it seems a good idea to replace the drain valves. Does anyone know where I can purchase these? 

[0TreeLemur]

McFarlane Aviation sells those.

https://www.mcfarlaneaviation.com/products/product/SA53S/

[David Lloyd]

So does Aircraft Spruce.  Don't let the picture fool you, some have an o-ring to seal the threads, some are pipe thread.

[EricJ]

I bought replacements at Aircraft Spruce.   They shouldn't be that hard to find.   Look in your IPC to get the original part number.

[JeffMirs]

Easy to find.  I bought one at Torrance once from the FBO.