3130 J spring window balances

A landlord from Freehold new Jersey says:
Windows were installed around 1989
Marked 3130 J

I need to replace both sides of the window

Can you advise which parts I need to buy please?
Thumbnail of the uploaded file named 20210503_093343.jpg
Thumbnail of the uploaded file named 20210503_094210.jpg
Profile picture of Paul
Paul from SWISCO responded:

Greetings. You have a a discontinued Swinger Window. The balance you show will be a custom 32" with the 19-008 top and 15-025 bottom fitting attached. The stamp weight will be 3130. The opposite side ( HINGE SIDE ) of the window will be a custom 32" balance with just a top fitting, 19-008, and no bottom shoe. The stamp option will be 3140. 

My colleague, Bob, just sent you an email with two custom links enclosed to order these respective balances. Let me know if you have further inquiries. 

15-025 : Channel Balance Shoe, Silver Line
Channel Balance Shoe, Silver Line
15-025
$1.42
VIEW >
15-058 : Hinge Leaf Assembly
Hinge Leaf Assembly
15-058
$2.95
VIEW >
16-008 : Spiral Balance Fork
Spiral Balance Fork
16-008
$0.95
VIEW >
16-009 : Take Out Clip
Take Out Clip
16-009
$0.85
VIEW >
18-027 : Top Tilt Latch
Top Tilt Latch
18-027
$0.98
VIEW >
19-008 : Channel Balance Top, Silver Line
Channel Balance Top, Silver Line
19-008
$1.15
VIEW >
Anatomy of a tilt window
Anatomy of a tilt window
VIDEO
WATCH >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at help@swisco.com.