Identifying replacement parts 20 3 BSI

A quick learner from Denver, CO says:
I'm having a bit of difficulty identifying the correct shoe and top for this channel balance replacement. The top piece tabs are broken off but I believe it 19-005 part. Please confirm. I cannot figure out which shoe I need for replacement.
The balance is 1/2 x 20.
Thank you.
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Tom from SWISCO responded:
Hello! I recognize this part. It will have to be custom made. That's no problem, though, it's a fairly common request. Before I send you an order form and price quote, can you j ust tell me how many you need?
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