حلقات O-Ring HNBR | CS 0.139" × ID 0.984" | AS568-214 | داش 214 | صلابة 70 (50/عبوة)

Used these in a high-temp engine oil line where standard nitrile kept failing—the HNBR handles the heat and chemical exposure way better. So far zero leaks after a few months, and the 70 durometer gives just enough flexibility for a tight seal without being too hard to install.

I needed a reliable seal for a hydraulic fitting that sees some heat cycles, and these HNBR rings fit perfectly. The 0.984" inner diameter was spot on, and they haven't hardened after a few weeks of use.

The 70 durometer feels just right for the oil pan gasket I replaced — no leaks after a week of driving. These handle the heat from the engine bay perfectly, and the pack of 50 will last me years.