Originally Posted by dbkdev
I got mine today and am having the same problem. What did you end up doing?
The second valve assembly they sent me was defective in this way as well. I ended up reusing the one from the first kit. I think it was bad machining on the nipple threads. Either way, call NB today and they'll send out a replacement. If you claim the whole valve is defective, you could end up with an entire extra valve kit.
If they can't have it to you by your next brew day, take it to Home Depot to see if you can find a replacement.