On 6/8/2013 8:31 AM, Stormin Mormon wrote:
Most of the applications I have, I'd go with
farm experience rather than a web site that
claims this or that.

Do you ever stack a lock washer and flat
washer? And, how does that turn out?
....

Quite a lot...a wide variety of applications have adjusting slots for
depth settings, etc., that have flat washers to span the slot and lock
washer on top. Works fine...

Again, for the application. I can imagine one can find vibration
regimes/applications where it doesn't suffice.

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