حلقات O من HNBR 0.139" CS × 0.359" ID | AS568-204 | داش 204 | صلابة 80 (100 / عبوة)

The 0.139" cross-section fits perfectly in my hydraulic fitting, and the HNBR material handles the heat from the pump without any swelling. For the price of a 100-pack, these are a solid value for industrial repairs.

I’ve been using these HNBR o-rings in a fuel system application, and the 80 durometer feels just right—firm enough to hold pressure without being brittle. The -40°F to +300°F range was exactly what I needed for winter operation, and the 100-pack gave me plenty of spares. No leaks so far.

Finally, o-rings that seal properly on the first try. The 80 durometer is stiff enough for my compressor rebuild, and the -40°F rating gives me confidence for winter storage. A full pack of 100 means I can replace them all without hunting for singles.