MOTM

Here's a list of 600 standard flat washers:

http://www.wclco.com/pdf/flatwash/fw10-25.pdf

My guess as to the 650 washer that Synth Tech supplies is:   7/16 .469 
.734 .062 MS27183.  Interpreting:

.469" ID x .734" OD x .062 thick.

If you look a little below this in the chart, there is one listed 7/16 
.472 .625 .032 AVAILABLE.  This one is just about the same Inner 
Diameter, but is .625 inches O.D.. Is this what we want?  It is half the 
thickness.  Here is the washer page:

http://www.wclco.com/Flat_Washers/Index.php

They have a $100 minimum order.  How many washers you think $100 buys?

-Richard

Richard Brewster wrote:
> As Paul mentioned in his update, these are larger than the Switchcraft 
> washers used on other MOTM modules.  The jacks are larger in diameter, 
> too, and take a different nut size.  A slightly smaller washer, ideally 
> the same outer diameter as the regular washers with an inner diameter 
> big enough to fit the jacks, would improve the appearance of the 650.  
> The washer sizes are:
>
> Switchcraft:  O.D. 5/8 inch (about 16mm), I.D. 3/8 inch (about 9.5 mm)
> 650 washer:  O.D. 18mm, I.D. 12 mm
>
> The ideal washer would be O.D. 16 mm and I.D. 10 - 12 mm (12 is larger 
> than necessary).  I am not sure what's the minimum to fit the jack, but 
> it's larger than 3/8 inch.  Paul, what hole size is drilled for these 
> jacks?   If anyone finds such a washer obtainable in the U.S. in 100 
> quantity I would be interested.  (I imagine that Paul applied due 
> diligence here, but who knows what we all might find.)
>
> Richard Brewster
> http://www.pugix.com
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