Simonton window problems

A home owner from walnut Creek says:
October 5, 2015
I have simonton double hung windows. Two of them flopped out and now are very hard to raise or lower. I think the springs are ok #6.5 35" pat 5232208, but I am guessing I need to replace most of the nylon/plastic. Please advise what you think needs to be replaced and provide the nylon/plastic part numbers. Also I need 1 of the round metal lock pieces. They flopped out because the parts that keep them from flopping out are broken, what is that part number?

Thanks a lot
User submitted photos of a window balance.
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Tom from SWISCO responded:
October 8, 2015
Thanks for posting. I've associated some parts with this thread that may match what you're looking for. You can see my list on the right side of this page. Look them over and let me know what you think.
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
Pivot Shoe, 17/32" Thick
Pivot Shoe, 17/32" Thick
15-199
$3.70
3/8" Coil Dual Support
3/8" Coil Dual Support
15-204
$1.88
6 lb Series 165 Egress Coil Balance
6 lb Series 165 Egress Coil Balance
S165-6
$4.87
6.5 lbs Series 160 Coil Balance
6.5 lbs Series 160 Coil Balance
S160-06
$4.85
How to Replace a Window Tilt Latch
How to Replace a Window Tilt Latch
VIDEO
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Anatomy of a tilt window
Anatomy of a tilt window
VIDEO
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How to Replace Damaged Pivot bars
How to Replace Damaged Pivot bars
VIDEO
WATCH >
How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
VIDEO
WATCH >
How to remove window pivot shoes
How to remove window pivot shoes
VIDEO
WATCH >
How to replace a window coil balance
How to replace a window coil balance
VIDEO
WATCH >
Styles of Tilt Window Latches
Styles of Tilt Window Latches
GUIDE
READ >
Removing a Triple Coil Window Balance
Removing a Triple Coil Window Balance
GUIDE
READ >
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