حلقات O من مطاط بونا-إن 0.139 بوصة CS × 11.984 بوصة ID | AS568-284 | داش 284 | صلابة 70 | أسود (14 / عبوة)

The 0.139" cross-section fits snugly into the groove on my hydraulic cylinder, and the 70 durometer feels just right—not too stiff. I've had zero leaks since swapping these in a week ago, which is a relief after fighting with worn-out seals. For the price and quantity, these are a solid deal for sta

Installed these on our irrigation pump flanges and they seated perfectly with no leaks. The 70 durometer feels just right for a snug seal without being too stiff.

The cross-section is exactly 0.139" as listed, and the rubber feels pliable yet firm enough to seal a water pump flange. I've used these for a few days now with no leaks or issues, even at higher temperatures.