حلقات O من PTFE بقطر داخلي 0.736" وقطر مقطع 0.103" | AS568-116 | داش 116 | صلابة 11 (50/عبوة)

The -350°F to +500°F range is exactly what I needed for a cryogenic fitting, and the 11 durometer makes them surprisingly pliable for PTFE. They seated snugly in the groove without any cracking during installation.

These worked perfectly to replace the old seals on my lab's distillation apparatus, handling the heat cycles without any deformation. The 0.736" ID was spot on for the fittings I needed.

Finally got these to replace a worn-out seal on a high-temp valve, and they fit perfectly on the first try. The -350°F to +500°F range gives me confidence it'll hold up in extreme conditions.