HNBR O型環 | 線徑 0.103 英吋 × 內徑 2.486 英吋 | AS568-144 | Dash 144 | 硬度 80 (35 顆/包)

The -40°F to +300°F rating is exactly what I needed for a hot oil application, and the 80 durometer feels firm without being brittle. Fit the groove perfectly on the first try, no fussing or forcing.

Worked great for a hydraulic repair job on a piece of farm equipment—the 80 durometer held up to the pressure without any noticeable swelling. I'd grab these again for the high-temp tolerance alone.

Installed these in a hydraulic pump that sees constant heat, and the -40°F to +300°F range gives me confidence they'll last through the summer. The 80 durometer feels robust but still seals easily without fighting the groove.