Truth 16.52 Sash Lock. A very common sash lock that tends to fail because the plastic slide breaks due to incorrect installation at the window manufacturer or being forced when there is a obstruction in the window opening. The new replacement model has a thicker plastic slide. Because the slide is thicker, the keeper, part # Wi41268 and Wi41269 might have to be shimmed with small washers.
Common numbers found on this sash lock are 21328 and 45189
Non handed (can be used on right or left hand windows).