حلقات O-Ring من Viton FKM 0.07" CS X 3.739" ID | AS568-044 | داش 044 | X-Ring | صلابة 70 (10 / عبوة)

The 70 durometer feels right for a firm seal without being brittle, and the 3.739" ID fit my application perfectly. So far they’ve held up at higher temps without any issue, which is exactly what I needed.

Used these to replace a worn seal in a hydraulic cylinder that sees temps over 300°F, and the Viton material handled it without any sign of softening or swelling. The 70 durometer gives just enough flex for installation while maintaining a solid seal under pressure.

The cross-section is exactly 0.07" as listed, which made seating these in the groove effortless compared to the squishier ones I've used before. They've handled the 350°F steam cycles in my setup for two weeks now without any visible wear.