Broken plastic locking jam for a cranking vinyl window

A handy person from Verona NJ says:
Please take a look at these three photos to see if you have this broken locking jam in stock or perhaps you can tell what the part is called; it is white plastic that locks upright into a narrow groove on the window frame with a tiny locking pin in the right and left windows of the picture. It helps lock the window when you crank it closed. This item is roughly shaped like a hockey stick - 2 1/2 inches on the long side and 1 1/2 inches on the short side. The jam - when fully inserted through the groove - manuevers the metal locking gates inside the window housing to lock the window. Thank you - Glen
user submitted photo of window lock
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Mike from SWISCO responded:
Good morning, Glen. Thanks for posting on the discussion board and submitting your photos. Take a look at the Swisco 38-090 Casement Lock. This looks like a pretty good match to me.
A handy person from Verona NJ says:
Thanks very much, mate. I just ordered three units. Is there any secret to preventing these pieces from breaking in the future ? For starters, I suppose I should lubricate the sliding internal locking gates so resistance is minimized. But the pieces seems to break somewhat easily. Thanks again. Glen
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Dave Sr. from SWISCO responded:
Yes, I recommend you lubricate the tracks and make sure your window opens and closes properly. If you're window is not closing all the way, your lock may be trying to pull the sash closed, causing them to break.
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