Faucet coupling gasket

[bhs668]

I was wondering if anyone knows a source for a standard faucet coupling gasket, gasket between the faucet and shank, where I don't have to pay $6 or more for UPS shipping for a $.35 gasket that can just be dropped in an envelope.

 

[sativen]

I took my faucet to the hardware store with me and was able to find one that worked for like $.40

If I can find the part number, I'll post it.