حلقات O-Ring HNBR | 0.21" CS X 2.725" ID | AS568-335 | داش 335 | صلابة 80 (12 / عبوة)

Needed a reliable seal for a high-temp hydraulic line and these HNBR rings handled the 300°F service limit without a hiccup. The 0.21" cross-section sits snug in the groove, and the 80 durometer feels firm but not brittle. Twelve in the pack means I've got spares for the next three repairs.

The temperature range on these is exactly what I needed for a hot oil application. They seated perfectly in the groove and haven't shown any signs of swelling.

Used these to replace a worn seal on a hydraulic cylinder and they seated perfectly, no leaks. The 80 durometer feels just right for the pressure we're running, and the temperature range covers our needs. Have a second pack already in my cart for spares.