حلقات O من مطاط بونا-إن نيتريل | AS568-417 | داش 417 | صلابة 70 | أسود (60 / عبوة)

Used these AS568-417 o-rings to rebuild an old hydraulic cylinder and they sealed perfectly at first try. The -40°F temperature rating gives me confidence for my outdoor equipment that sits through winter.

These fit perfectly on my hydraulic cylinder rebuild kit, and the 70 durometer feels just right for the pressure. The -40 to 250 degree range gives me confidence they’ll hold up in the cold shop this winter.

I needed a few spare o-rings for an old pneumatic cylinder, and these AS568-417s fit perfectly with no leaks. The 70 durometer feels just right for the application, and the package of 60 gives me plenty of extras for future repairs.