Federal Pump pressure valve ball missing

Hello all, I got a used federal pump for my 70 /6 Duster and after putting a new seal kit in it with new hoses and a known good box, I had no steering assist no matter what I did. Took it back apart since I predicted the pressure valve to be the issue and sure as heck, there was no ball inside. Anyone know where I can get one? This valve was opened up before (see the engraving on the second picture) and I’m guessing didn’t work for them either lol.

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