Lets Play "What is the PN"

[jsbihn]

Hey all,
Ok I am having issues finding a part number for a basic piece of my A/C.
I replaced everything last year but I have a leak it seems. I think the leak is in the shrader valve (back valve or fill valve), since I put dye in it and it appears to be very slow possibly from that valve. Given I am not 100%

Anyways, the issue is to replace the back side valve (I am not sure if it is the Hi or the Low, I always get them crossed when I am not in front of them) I need to be able to order the part..... but I cant find on Nally GMC's online parts book that part number that matches the diagram number.

If you refer to this picture:

http://parts.nalleygmc.com/images/pa...25TN09-003.JPG

I am trying to find the part number for #34.


Thanks for the help