I have an Anlin Catalina single hung window. The parts that are broken are metal pieces that are inserted into the sash and connect to the coil balance. There are two of these in the sash (one on each side) and both are broken.
Bob from SWISCO responded:
August 28, 2019
Thanks for writing in. Take a look at our 26-398 or 26-405. One of these might work for you, depending on the hole placement. Look them over and let me know what you think.