Broken shoe with ears

A quick learner from USA says:
July 12, 2022
the coil itself is 1/2" wide so mounted in that plastic housing (which is broken) it is 9/16" thick. that original gray shoe is 1/2" thick but I feel there would be room for a 9/16" shoe, given that the coil which fits in same window track is 9/16"

I have attached more photos. I will go to house and take measurements of window track too if you need them.
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Tom from SWISCO responded:
July 18, 2022

This is an older style pivot shoe that we are not able to sell. I don't know this for a fact but it may be an obsolete part. 

I think the best possible option we can supply is our 15-191 shoe and Series 160 spring. You will also need the number printed on the old spring to determine the best Series 160 option.

Please note that this is no guarantee, as I've never had confirmation that this configuration works. However it is our best possible option.
A quick learner from USA says:
July 18, 2022
Hi Tom,
Thanks for the input. I was expecting that it may be obsolete, but I am willing to try the retrofit with parts you suggest. There is an"8" stamped on the spring not far from the hole.

regards,
Tony
A quick learner from USA says:
July 27, 2022
Tom,
As mentioned in my previous reply there is an 8 printed on coil. I see the Series 160 is offered in 7.5 and 9 lb sizes, so I guess best guess option then is the 7.5. But I am wondering what you have for a coil mount/holder? for that series 160?

thanks. your advise is appreciated!
regards,
Tony
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Tom from SWISCO responded:
July 28, 2022

The weight you decide to go with is ultimately up to you. Personally, I think two 7.5 springs would be better for a 16 pound sash (which yours should be, since the old springs were 8 pounds each). I don't think you'll notice them being a pound off.

As for cover, The Series 160 is designed to be used with the 15-150S single spring support.
Heavy Duty Pivot Shoe, 1/2" Thick
Heavy Duty Pivot Shoe, 1/2" Thick
15-191
$2.57
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