حلقات O-Ring HNBR 0.103" CS × 0.549" ID | AS568-113 | داش 113 | صلابة 70 (100/عبوة)

The HNBR material feels noticeably firmer than standard nitrile, which gives me confidence for higher-temp applications. These 113 o-rings seated perfectly into a hydraulic port on my shop press, and the 70 durometer seems just right for a tight seal without being too stiff.

I needed o-rings that could handle higher heat than standard Buna-N, and these HNBR ones fit the bill perfectly with that 300°F rating. The durometer feels just right for the hydraulic fitting I repaired—not too stiff, not too soft.

The 0.103" cross-section on these HNBR o-rings feels a bit meatier than the standard ones I've used, and they slid into groove without any fighting. Used them to rebuild an old hydraulic cylinder and they sealed up perfectly even after a few heat cycles.