Andersen lock and keeper

My single hung Andersen window does not stay up when I slide it up. I may need to replace the lock and keeper but not sure what the part no is. On the lock there is a number: 9527-4. The windows were installed around 2005. Can you assist in identifying the part name and number?

Thank you for your help. It seems like it should work for my window. I have ordered the part from you.