Searching for Datasheet of Amphenol

I have ordered PN VM0235520000G‎ on Digi-Key yesterday. But when shipped, it was changed to PN 20020012-D021B01LF.
We were explained by Digi-Key that the original one was nonstock and replaced by the new one. And they are the same part. The part 20020012-D021B01LF is the other name of VM0235520000G, the MFR is Amphenol.
So could I get a document kind of Datasheet or something else to prove that 2 parts are the same? It should be authoritative for manufacture.
Please help and support us this issue.


Here is a link for the PCN from the manufacturer .