Airforce Texan valve

I was able to match the o-rings in mine up with ones out of a run of the mill hardware store o-ring kit.
If the mechanical parts of the valve are what are leaking like mine was only a new valve will fix it. The pieces are some sort of plastic and just pressed together. One half of the valve seat popped off the stem and was rattling around in the tank.
The TX2 valve they replaced it with under warranty looked to be made similar but different, but I didn't let my curiosity turn into the need for yet another one at my own expense.
 
I think I got all the o rings here but the derlin was leaking on the bottom I got some peek thinking about making it to .365 which which would help air flow and it will lift easier as well
it will lift easier and better airflow but more pressure on smaller aria makes it compress and ruin faster; find a good german polyamid (yellow one) best work uo to 6000psi tested
can u tell me flow hole diameter? seems to be near .280 ?