حلقات O من PTFE | 0.103" مقطع × 1.799" قطر داخلي | AS568-133 | داش 133 | صلابة 13 (35/عبوة)

Finally got a batch of these Dash 133 o-rings for a cryogenic application and they sealed perfectly on the first try with no leaks. The -350°F rating gives me confidence for extreme temp cycling and they slid into the groove easier than the harder durometer ones I've used before.

The 13 durometer is surprisingly soft and pliable, making these PTFE o-rings a cinch to seat in the groove. I needed the chemical resistance for a harsh process fluid, and these are performing flawlessly so far.

The temperature range on these is what sold me—needed something that could handle extreme cold and they’ve done the job so far. The 13 durometer makes them feel surprisingly pliable for PTFE, and the 1.799" ID fits the groove perfectly.