حلقات O-Ring سيليكون 0.139" CS × 2.984" ID | AS568-234 | داش 234 | متوافق مع FDA | صلابة 70 | أحمر (50/عبوة)

I needed a 70-durometer seal that could handle high heat, and these silicone rings feel robust in hand. They seated perfectly in my pressure cooker valve assembly with no distortion.

The red color makes them easy to spot when I'm digging through my spare parts bin, and the -80°F to +450°F range gives me confidence for hot applications. I've used about a dozen so far and they seat perfectly without any deformation.

I swapped these into a high-temp water seal on my lab rig, and they held up perfectly at 400°F with no softening. The 70 durometer feels just right—firm enough to seal tightly but not too stiff to compress.