Truth casement window part

A home owner from Tennessee says:
The black piece is broken that attached to the window to slide when turning handle. Truth 30744 is on the piece attached to the longer piece. The longer piece that has the black part attached has # 31133.
The piece by itself has 30752-B.
I also need 4 handles that has Crestline on it.
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Bob from SWISCO responded:

Hello there. It sounds like you might need a new hinge set. See if our 39-114 matches what you need. For the crank handle, if the hole that fits on the spline is 11/32" in diameter, see our 39-114.

How to Replace a 2-Bar Hinge Set on a Casement Window
How to Replace a 2-Bar Hinge Set on a Casement Window
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