Armstrong A/C Starting capacitor

The Armstrong A/C on my '77 Sovereign has quit.



I suspect the starting capacitor.



I removed the old one and I can't seem to find an exact match for it.



It is an oval GE, about 7" tall & 3" wide. It has two posts on top, one with normal sized spade lugs, the other has smaller lugs. There are two wires to each post.



Here is the info from it:



45F1653 60 HZ

30, uf

366-410 V MAX.

370 V NOM.



Above the GE logo is another number: 76-38



On the opposite side is another number: 4740B47



Can anyone suggest a replacement for this part (an a good place to order it from)?



Thanks!