Advanced Engineering Tech - Who sells Machine Flat Washers? Need them for my YT install.

What's up guys? I am trying to install my YT UL's on my TFS 235's. Well the shim supplied was not enough to get a good wipe pattern in the middle of the valve. So I added another washer that I had laying around to get the correct wipe pattern. The needed thickness is .100". I don't want to stack washers, just seems like a bad idea. I called McMaster-Carr and couldn't find exactly what I needed. The main problem is with tolerance variance. The thicknesses, what ever they may be, have a .020" variance. That is way too much for what I am needing. All the shims/washers that came in the YT kit are exactly .047". I need that kind of accuracy. The washers I need are 5/16" x 3/4" x .100" Or 8mm x 19mm x 3mm. Who sells true machine flat washers that are accurate. I kind of need an answer like yesterday. So any help would be greatly appreciated. Thanks.
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You might try calling ARP. I've bought machine finished washers from them in the past. I'm not sure if they'll have exactly what you need, but they're the only ones who might be likely to have somthing in stock.

Good luck,

Richard :)

Give this guy a call http://www.machinest.com/spacers/Sub-pages/catalog.htm i