حلقات O-Ring من Buna-N Nitrile بقطر داخلي 1.725 إنش وقطر مقطع 0.21 إنش | AS568-327 | داش 327 | صلابة 90 (200 / عبوة)

The temperature range is the selling point for me—these handle everything from freezing shop floors to warm hydraulic lines without complaint. The 90 durometer hardness also means they hold their shape better than the softer ones I've used before. A full 200 in the bag is plenty to keep spares on ha

I was replacing worn-out seals on a hydraulic cylinder and these o-rings fit perfectly; the 90 durometer material feels tough enough to last. The 1.725" inner diameter matched my application exactly, and they arrived well-organized in the package. Got the job done quickly without any leaks.

I’ve been using these for a pneumatic seal repair on an industrial press, and the 0.21” cross-section fits perfectly without any leaks. They held up well even when the temperature spiked near 200°F for several hours straight.