A/C, O-ring size ? Type 44

[David Conner]

Can anyone tell me the correct size O-rings?

This is re: four O-rings between the Nippondenso A/C compressor and
manifold ... the block shaped thing attached to the side of the compressor.
 These don't seem to be shown anywhere ... not on the parts fiche (FA), and
not in Bentley.  I'd like to have the right ones on hand before taking this
thing apart.
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Dave C.