RFS Walform Plus Viton Captive O-Ring Seal, 30S for 30mm Tube, Pressure Rating up to 6000 PSI, Round Viton O-Ring, Pack of 10 Pieces, for Heavy Use : Amazon.ca: Industrial & Scientific
O-Ring Pressure Ratings | Global O-Ring and Seal
High Pressure O-Rings | ESP International
Pressure Ratings, General Reference | Air-Way Manufacturing