(Found on Facebook)
While they may not be new to you, They're new to me. Jack First Gun Parts is another online resource for hard-to-find parts for old guns. I've used Numrich for years, but it never hurts to have alternatives.
Another resource is Out Back Gun Parts. They do have a web site, but you have to call them to find out about parts availability or to order. According to their minimal web site, "We currently inventory approximately 6 million gun parts and could not possibly list everything we carry." As an IT person I'm not buying that, but it's their business, they can run it as they wish. I'll keep them on my list, but they will be at the bottom. I like convenience. It's not convenient to have to call you.