Global O-Ring and Seal, LLC - What's square, round, and a superb seal at the same time? Square Rings! Square Rings fit in o-ring grooves and are interchangeable size-for-size. We keep Square
Square-Ring Seal Size Chart | Standard Square-Ring Seal Size
42 to 48 ID X 0.139 (3.53mm) C/S Square Buna-N 70 Vulcanized O-Ring [VSN70.139-048] : The O-Ring Store LLC, We make getting O-Rings easy!
Elastomeric seals with various cross-sectional profiles; (a) O-ring (b)... | Download Scientific Diagram
Rubber Square Ring Seal Sizing Chart | All O-Rings