Replacement Parts for Tilt Windows

A quick learner from Somerset, New Jersey USA says:
May 30, 2022
Hi, I am looking to replace the latch and shoe for my window. I only know it's 27 inches and found the marking on the 27C NL BS(I). The block is nested in the side corner with the metal square on the end (see picture). I do know the maker of the windows the label is worn. I have attached 3 pictures that I hope can help identify the replacement parts. I would like to change this for at least 4 windows (2/per window).

Thank you,

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Casey from SWISCO responded:
June 2, 2022

Hello,

Take a look and compare the specifications of the S770-27 (27C) channel balance to yours. This balance is commonly used with the 15-129 pivot shoe but I would recommend removing your original shoe from the window to confirm that the width and thickness match up to yours. Thanks for posting! 
Pivot Shoe, 9/16" Thick
Pivot Shoe, 9/16" Thick
15-129
$2.50
27" Series 770 Balance
27" Series 770 Balance
S770-27
$12.70
How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
VIDEO
WATCH >
How to Remove a Pivot Shoe (Cutout Method)
How to Remove a Pivot Shoe (Cutout Method)
VIDEO
WATCH >
How to remove window pivot shoes
How to remove window pivot shoes
VIDEO
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Anatomy of a tilt window
Anatomy of a tilt window
VIDEO
WATCH >
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