Sort of off topic DRO part request

Does anyone know where to get the rubber gasket material common to many DRO scales? I have an older Bridgeport DRO that I'm trying to repair, and everything works fine but the rubber seal is cracked and useless. The cross section for this gasket/seal is the same as that on the Bauch&Lomb Accurate scales of yesteryear (mini scales). I suspect it is common to a whole bunch of companies. Anyhow, quite awhile ago somebody was selling a set of scales on eBay and they mentioned that the rubber was available from (I think) MSC. I've looked through their catalog and I can't seem to find it. Does anyone know where it can be purchased (or what a better name for it would be... other than "gasket", "seal", DRO, etc)?

Your help is appreciated...
Thanks,
--Alan


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