SO what your saying is that any part that is bought from other than an
aviation store is a bogus part, regardless of the part number on the part.
I guess this means that all parts bought at an aviation junk yard are
not approved to use in aircraft since there is no verification of the
traceability of the part.
A part bought on Ebay can not be used on a certificated aircraft.
This appears to be a Very Narrow view of whats allowed.

Please show me the regulations which back your statements.

I've never seen a "Aviation Disapproved Part" before.
Is that in the small print somewheres?

Dave

Robert M. Gary wrote:

Boy, you are pretty confused aren't you. The discussion concerns people
buying FAA disapproved parts at an auto store and not knowing the FAA
may have a problem with it. Parts that the FAA approves are not part of
this discussion. I would suggest starting at the top of the thread in
order to obtain proper context before jumping into the middle of a
thread without an understanding of the discussion.

-Robert