cap for pivot shoe

A quick learner from Weymouth, MA says:
Hi, I'm fixing my windows to sell the home and there is a pivot retainer missing (see picture.) I don't know who did the windows because it was done previous to my owning the house. Can you match?
cap for pivot shoe
Profile picture of Paul
Paul from SWISCO responded:
Your pivot shoe looks like our 15-105, which uses a 15-056 pivot retainer. See what you think!
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