Where to get 16mm Crush Washers

Hi Guys
I need crush washer for the oil drain plug...but ran out of luck at the local motorcycle store and Auto zone etc.....are these available online...mostly they r the 12mm which are eazy to get and not the 16mm....
Thanks
Rudy

http://www.amazon.com/Fragola-Aluminum-Crush-Washers-Pack/dp/B002VTA61G

or you could google copper 16mm crush washers.

thanks....will try to search more specific....also i need either copper or aluminium right...anything else that can be better

I just found a local dealer in NJ who builds them and sells them for cheap...another question is what size is the 16mm...the inside dimension or the outer dimension for the washer....thanks...here is a pic of their catalogue....
McMaster-Carr.com

got it when u had told me ID i didnt understand that it stands for Inside Diameter...thanks Clay

Just to be clear, is the subject of this thread the washer that goes between the drain plug and the engine, PN 62N0 15679?

yes exactly that nos 31 on the picture.....
the copper ones are expensive but the aluminium are cheaper...and i think use and throw eachtime the aluminium rules the budget

How much are the OEM 16 mm crush washers?

I've not changed the oil in my bike yet, what material are the OEM crush washers?