I contacted Chris' Coffee and was told they do not carry any individual replacement parts for the Duetto's steam wand and hot water tap valves. The entire valve assembly costs $46 plus shipping, which is a little crazy for a part which seems likely to fail again in the not-too-distant future.
I gather my only option here is finding a supplier for teflon rod of the appropriate diameter and hoping it will fix my problem. Is there anything else I can try? I need to order some parts from CC and I'm considering just biting the bullet on the whole valve since I don't want to end up paying shipping twice.

Tool marks on the nut are factory original.

Deformed teflon insert.




