SWISCO - The Replacement Hardware Authority

Correct for late 1970's RADCO aluminum casement window

A home owner from Where the redwoods mee the vineyards says:
Have read some of your other replies and greatly appreciate your knowledge and consideration of the questioner. This 39-045 operator is the closest thing I see listed to the stripped out operator I removed from what I believe to be a "RADCO" aluminum casement window new in 1978. Screw hole alignment is proper as well as arm length pivot to pivot. Is this correct for my window, or is one of the 39-001/2 series which seem similar? Track guide seems to be for 5/8 in. track. Thank you. Carl W.
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Dave from SWISCO responded:
I am not familiar with Radco casement windows. However, both of these operators are interchangeable. The only difference is that the gear box, one is rectangular and the other is a tear drop shape. As long as the installation holes line up and the arm is the correct length, this operator should work for your application. Both of these operators were used by various window manufactures.
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