حلقات O-Ring من HNBR بقطر مقطع 0.103" وقطر داخلي 0.861" | AS568-118 | داش 118 | صلابة 70 (70 / عبوة)

The -40°F rating is what sold me, and after a week in freezing temps these seals haven't cracked or lost their shape. The 0.103" cross-section fit snugly into the groove without any wrestling matches.

These are holding up perfectly in a high-temp hydraulic application where standard nitrile would've failed within a week. The 70 durometer gives them just the right firmness for the seal, and the -40°F to 300°F range covers everything I need.

I needed some o-rings that could handle a high-temp automotive application near the engine, and these HNBR ones with the -40°F to +300°F range are exactly what I was after. They seated perfectly in the groove and feel like they’ll last a long time at that 70 durometer hardness.