حلقات O من HNBR مقاس 0.139 بوصة CS × 2.734 بوصة ID | AS568-232 | داش 232 | صلابة 90 (20 / عبوة)

The temperature range is what sold me, and these haven't let me down holding up in a hot oil application that would wreck standard nitrile. The 90 durometer cross-section feels rigid enough that I didn't have to worry about them squishing out under pressure.

Installed these in a compressor seal that sees constant 250°F oil mist, and they've held up perfectly for months now. The 90 durometer hardness gives them a reassuringly solid feel when seated in the groove.

Used these in a high-temp hydraulic application and they sealed perfectly right out of the box. The 90 durometer gives them a solid, durable feel without being too stiff to install. I'll definitely be buying these again for future rebuilds.