حلقات O من Viton FKM | CS 0.139" × ID 0.609" | AS568-208 | داش 208 | صلابة 75 | بني (150 / عبوة)

The 75 durometer hardness feels just right for the high-temp application I needed—no softening or deformation after a few heat cycles. These FKM rings seated perfectly in the groove on the first try, saving me from rework. Exactly what I hoped for at this price point.

The -15°F to +400°F range is exactly why I grabbed these for a hot oil line on my machine, and they've held up perfectly through several heat cycles. Came neatly packed in a 150-count bag, and the brown color makes them easy to spot during assembly.

I've been using these to rebuild some old hydraulic cylinders on a piece of farm equipment, and the 75 durometer feels like a perfect medium hardness for sealing against oil. They fit the groove nicely and snap into place without distorting. The -15°F to +400°F rating gives me confidence for both wi