حلقات O من HNBR بقطر داخلي 0.299 بوصة وقطر مقطع 0.103 بوصة | AS568-109 | داش 109 | صلابة 80 (200 / عبوة)

The 80 durometer hardness feels just right for my application, and these HNBR rings handle the heat range I need without any softening. I've already used about 40 of them on a hydraulic fitting job and they seated perfectly every time.

I’d been having trouble with standard nitrile o-rings hardening in my hot oil application, but these HNBR ones at 0.103" cross-section have held up perfectly so far. The -40°F to 300°F temp range is exactly what I needed, and the 80 durometer feels firm without being brittle.

The 0.103" cross-section seals perfectly in my compressor’s hydraulic fittings, and the 80 durometer feels firm without being too stiff. I've used about 30 so far with zero leaks, even at 250°F oil temps.