It always good to keep a few extra switches around for substitution. When they get that old some work better than others. You have a quick replacement and one to tinker with later.
If it were me, I would take a hi-res pic or two of the needed parts against an accurate ruler with notations for post & nut thread sizes. Then email that to Jeff at Train Tender along with the part numbers from Olsen's manual for consultation.
Most larger hardware stores have a thread sizing "plaque" in their nut and screw section. Smaller hardware stores may have assorted specialty screws and nuts that you can compare against your parts to determine thread size & pitch.
I've found the Screw Chek'R to be very handy, I have both the inch and metric versions. I also have a separate drill gauge for threading holes, but these have drill recommendations as well.
I would suspect the 022 postwar switches were identical. I have not come across any differences. Even if there are different I suspect the motor section would be interchangeable with the switch part. Even Servoguy repair notes had anything on differences.
The old binding posts are riveted in. Cut them out, and the new binding posts screw in place.
Larry
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