I have an old Montgomery wards air conditioner. M/N SRM-51332A.
The motor died, it's part number is :K55HXMPZ-6560. It is an Emerson.
I got an Emerson 5462 to replace it.
http://www.emersonmotors.com/products/ecatalog.htm. I can't get a direct link to the page, so simple put 5462 in the part...