Here is a gasket kit for a Hill-Rom MedPlus 25 HP RC-0630 oil lubricated rotary vane vacuum pump - commonly used in medical applications.          

The part number from Hill-Rom would be 6911-9017-051 

E-mail me with any questions.   Thank you for taking the time to look at this item.  I also have rebuilt vacuum pumps available.

I charge actual shipping costs.