I CANNOT FIND THIS SPACER

A quick learner from HAWAII says:
I FOUND THE FIRST SPACER, 39-557, BUT AM UNABLE TO FIND THE SECOND. ANY SUGGESTIONS?
User submitted a photo of window hardware.
Profile picture of Tom
Tom from SWISCO responded:
I'm afraid I haven't been able to find that second part. Can you give me more information on what its function is? Could I see a picture of it installed in the window? It's possible that it's not available by itself, so seeing where it installs may help us find what you need. Thanks!
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