IAC O-ring part number?

Does anyone know if there's a GM part number for the o-ring on the IAC for a 2004?
I pulled mine throttle body for cleaning yesterday, and the orange o-ring on the IAC needs to be replaced. The dealer told me that there's nothing on their diagram for the part, meaning that it's only sold as part of the IAC assembly.
Does anyone know if there's an equivalent part number that would work?

I dont know about a part number, but if you go to a decent parts store with an o ring assortment, i am sure you will be able to match it up for a few cents.. even lowes and home depot sell individual orings.