This is a bit of trouble, but it might do if nothing else is available.
Look at the old gasket and determine the approximate thickness and composition. Probably 1/8" and some sort of neoprene or other rubber-like material.
Contact an industrial supply house like MSC (they have a web site) and buy a sheet of this stuff. You may find it elsewhere, such as hobby shops or maybe even Home Depot.
Cut a gasket to fit, using the old one as a template. (DO NOT replicate the tooth marks.)
Hi. I have a Welbilt Bread Machine, model 100-4, the glass topped
> model that bears a faint resemblance to R2-D2. Lots of em for sale on
> ebay. Last night the dog ate, not my homework but the red packing
> gasket, about the size of a silver dollar, that goes in the bottom of
> the pan and allows the pan to hold flour and liquids.
>
> Naturally, the machine is useless without it, and this part is
> unavailable from Tritronics, the online parts source. I called to make > sure. >
> We would like to get the machine working, it belonged to my deceased
> Father in Law. Does anyone have a substitute gasket fix they could
> share? Please reply to this forum AND to me personally at
> athos snipped-for-privacy@hotmail.com.
>
> Thank you very much. Athos