Looking for NAMI (?) Replacement Casing Mechanism

Home Owner from Worcester, MA

Aug 15, 2024 6:23 pm

Hi! I need to replace this mechanism (see photos). Inside there are numbers 30614 & 30893. There are no words or numbers on the arms.

Another part of the window has NAMI printed on a sticker.

Can I replace this part? Do you recognize it?

Quick Learner
Home Owner

2 user uploaded images

4 Replies

Jasmine from SWISCO

Aug 16, 2024 4:33 pm

Hey there,

Thanks for reaching out! Your operator appears to be the 39-090 Window Dyad Crank. The opposite version is the 39-089.

To confirm this you'll need carefully compare the diagram below to your existing hardware. You'll want to be especially sure to compare the shape of the arm connected to the base of the operator.

I've also tagged the other compatible hardware below.

Dimensions for 39-090

Quick Learner from Worcester

Aug 17, 2024 6:55 pm

Thank you--the measurement of the screw holes on base on mine is 5", like what's shown in the top of the photo you sent. But the measurement of the length of the arm on mine is 4.5", not 5" as shown in the bottom of your photo.

Does that matter much? If it simply means the window won't open quite as wide, I'm fine with that.

Jasmine from SWISCO

Aug 19, 2024 9:35 am

You may be able to adjust the bracket on the sash to accommodate for the difference in the measurement. This method would require drilling a new hole in the bottom of the sash. Keep in mind, there is a risk of drilling into the glass panes, so you would need to use caution when drilling.

Another option would be to swap out the link arms on the operator. This would require drilling out the rivet on both the old and new operators and then swapping the arms. The old arm can be attached to the new operator using the 62-014B Rivet.

As you've mentioned, if you leave it as is, the window will not open as far.

I hope this helps!