Operable hardware for a multi-sash awning windo

A quick learner from Downers Grove, IL says:

February 1, 2017

The two photos show original (silver) and replacement (beige plastic) hardware for this window type. Replacements were made by others. I cannot find any markings on the hardware except some circles. The size is 4-1/2" x 2-1/8" plus the flanges. There are four sashes per window. Some of the existing hardware is broken- crank is diisengaging. Trying to find the right replacement hardware.

User submitted photos of a window operator.

Dave Sr. from SWISCO responded:

February 7, 2017

I'm not sure what to recommend. The white finish operator kind of looks like our 39-060, while the aluminum finish operator looks more like the 39-075. You will need to remove the operators from the window and carefully go over our measurements to confirm that these match up.

Lenahan Window Crank

39-075

$20.45

3/8" Shoulder Screw, 5/16"-18 Thread

5/16" Shoulder Screw, 1/4"-20 Thread

33-070

$1.27

Shoulder Bolt Bushing

33-207

$0.85

#10 x 1/2" Pan Head Phillips Screw

33-081

$0.18

How to Replace an Awning Window Operator [1080p]

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