Spiral spring plastic tilt locking blocks

A handy person from Philadelphia says:

Red 5/8 springs 21" long have springs need 16 locking blocks windows 20 years old every time my wife tries to clean the windows and tilts the windows in the brittle plastic blocks break so need to replace all 16. Looked through your catalog think I know which blocks to order but not absolutely positive

Thank you

Rudolph 

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Paul from SWISCO responded:

The company that made your window part has gone out of business. It looks like yours is 1-1/4" wide by 1/2" thick, which makes me think you can use our 15-046 pivot shoe as a replacement. If you also need the spiral balance, consider our 5/8" diameter Series 600 spiral balance. I've also related some helpful videos to this page that you may want to look over.

How to replace a tilt window spiral balance.
How to replace a tilt window spiral balance.
VIDEO
WATCH >
How to Identify a Replacement Spiral Balance
How to Identify a Replacement Spiral Balance
VIDEO
WATCH >
How to Remove a Pivot Shoe (Cutout Method)
How to Remove a Pivot Shoe (Cutout Method)
VIDEO
WATCH >
Swisco's 15-046 Pivot Lock Shoe
Swisco's 15-046 Pivot Lock Shoe
VIDEO
WATCH >
How to remove window pivot shoes
How to remove window pivot shoes
VIDEO
WATCH >
Anatomy of a tilt window
Anatomy of a tilt window
VIDEO
WATCH >
How to choose the proper spiral balance tip color
How to choose the proper spiral balance tip color
GUIDE
READ >
How to adjust a spiral balance on a tilt window
How to adjust a spiral balance on a tilt window
GUIDE
READ >
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