looking for casement window crank operator

A quick learner from Alaska says:
March 12, 2023
One of the arms has the part number 30905 for a Truth window. However, the picture of the part that comes up does not match what is on there now. Pictures attached.

Thank you in advance!
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Tom from SWISCO responded:
March 14, 2023

That number is commonly associated with our 39-171 and 39-172. Is that the product you looked up? If so, your operator looks like an older version of these parts. The only thing I'm concerned about is whether or not your operator has an offset in the link arm, like ours. As long as it does then I think it should be okay.

Dimensions for 39-172
Dimensions for 39-172
Truth Hardware Dyad Operator
Truth Hardware Dyad Operator
39-171
$32.55
Truth Hardware Dyad Operator
Truth Hardware Dyad Operator
39-172
$32.55
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