Up for sale here is this used vintage Mallory (RMC) ceramic disc capacitor, from the late 1950s or early 1960s and Made in USA. It is marked .02 uf and is probably a 50v or 100v cap.  It tests right around .02262 uf, and will work great for you.  Please see my pictures for details and test results.

US shipping and handling is $5, and international is $18, no matter what quantity you buy. All my small parts are set up for combined shipping, so just use the "add to cart" feature and then check out all at once, and it will combine shipping. If you have any questions, please ask.

I have more capacitors and other vintage electronics listed--feel free to take a look!