Vertical Sliding Window Hardware

A quick learner from Kirkland, WA says:
October 18, 2023
Hello,
I have several vertical sliding windows with failed tension spring that won't stay open. I removed the windows and found flat springs and window shoes broken.
The windows are single hung with total height of 70" (2x35") and 35" width. The window channel where spring is located has 3/4" opening width and 1/2" depth.
I have attached pictures from the window shoe, failed spring and good spring.
I cannot find window manufacture and would like to buy all hardware parts for these windows. Let me know if you need other information or pictures.
Thank you.
Thumbnail of the uploaded file named Broken Shoe.jpg
Thumbnail of the uploaded file named Failed Spring.jpg
Thumbnail of the uploaded file named Good Spring.jpg
Profile picture of Casey
Casey from SWISCO responded:
October 18, 2023

Hello,

I can't be sure without seeing an undamaged assembly removed from the window but what I can make out reminds me of the S140 coil balance. Take a look and compare the dimensions below to yours. You may need the S140-12 based on the 6+6 stamp on your cover but I would recommend weighing your sash to confirm that it falls within the 23-24.99 lbs. range that these balances support. Thank you. 

Alternate image for S140-12
Alternate image for S140-12
A quick learner from Kirkland, WA says:
October 19, 2023
Hi,
Thank you for your reply. I weighed the sliding section, and it weighs 36.8 lbs. I also added a few more pictures including the top corner locks that I need to replace.
Thank you.
Thumbnail of the uploaded file named Another picture of Spring.jpg
Thumbnail of the uploaded file named Broken Corner Locj.jpg
Thumbnail of the uploaded file named Good Corner Lock.jpg
Profile picture of Casey
Casey from SWISCO responded:
October 20, 2023

In that case, see the S140-18 coil balances that will support a sash between 35-36.99 lbs. I would still recommend removing yours from the window to ensure that the dimensions match our product image. 

You can also start by comparing the specifications of our 26-243 and 26-244 to your tilt latch. 

Profile view of 26-243
Profile view of 26-243

Alternate view of 26-244
Alternate view of 26-244
Tilt Window Latch, Left Hand
Tilt Window Latch, Left Hand
26-243
$2.70
Tilt Window Latch, Right Hand
Tilt Window Latch, Right Hand
26-244
$2.70
18 lb Series 140 Quick-Tilt, Dual
18 lb Series 140 Quick-Tilt, Dual
S140-18
$13.70
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