Hi Swisco,
I'm also located in Austin, TX, and it looks like my windows are a lot like the ones belonging to the "Quick Learner" who started this thread.
I too am in need of a replacement channel balance. However, my dimensions seem slightly different. Here's a data dump:
Channel stamp:
The two channel balances in the window have different values, but they look interchangeable. Maybe one was replaced by the prior owner.
1st one: 2790 31 (this is the broken one)
2nd one: 2740
Rod (metal) length: 28"
Winged Piece:
Length: 1 1/4" (from wings to tip)
Length: 1 3/4" (from end-to-end, including the part that's inside the channel)
Wing width: 15/16"
Non-wing width: 1/2"
Non-Winged Piece:
Length: 1"
Depth: 1 1/16" (This is the 1 1/8" dimension in the
15-001 diagram)
Width: 1/2" (or slightly narrower)
Part numbers (these are all printed on the label):
ANSI/AAMA 101-88
Series: 3710/3710F
DH-R25
MST: 4080
Is this enough info to create a quote and work order?
Thanks!
-Windowless in Texas