حلقات O من Viton FKM | AS568-161 | داش 161 | صلابة 75 | بني (16/عبوة)

The high-temp rating was the selling point for me—my old seals kept failing around a hot manifold, and these Viton ones handle the 400°F range without any sign of softening. The brown color also makes them easy to spot during assembly.

Needed to replace some standard o-rings that kept failing under continuous heat exposure, and these FKM seals are holding up perfectly at around 350°F in my setup. The brown color makes them easy to spot against black fittings too.

Got these for a high-temp application where standard Buna-N always failed. The FKM material handles the heat cycles perfectly and the brown color makes them easy to spot during maintenance. Exactly what I needed for that stubborn hydraulic fitting.