Many years ago I used to work for Century Spring corp in Los Angeles. They
had then an amazing variety of springs. If I remember correctly they
advertised they had "the largest stock of springs in the world".
Might be worth a phone call.

Chuck

"Marcel Gonzalez" wrote in message
...
I have a pinball machine that needs a specific spring, but the usual
sources
have to custom make them, resorting to a minimum quantity (usually 500).
The spring is of compression-type. It is much fatter in the middle than on
the
ends. It looks like 2 cone springs back to back, but there are no welds
evident, it is one whole spring. When compressed it forms a nice thin ring
(all
the coil turns come together).
Anyone know - What kind of spring is this? Any known off the shelf source
?

Thanks in advance.
Marcel