Pressure Ratings, General Reference | Air-Way Manufacturing
DESIGN ENGINEERS' O-RING SIZE GUIDE
The World's Best O-Ring Handbook
How an O-Ring Works | Hot Topics
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