[Milsurplus] Trying to ID a General Electric Transformer

[John Hensley]

If anyone has a GE transformer reference, I am trying to identify:
GE number 9T45Y2751 and 5490157-1
which occur together, one under the other on the side of a heavytransformer.  I can send pictures.
I have been using GOOGLE but so far can't even come close.  I alsoemails GE earlier this week but have not heard from anyone.
Please QSL if you have any information.
Thanks, John W5JV