حلقات O من Viton FKM | AS568-909 | داش 909 | صلابة 90 (300 / عبوة)

I’ve been through a lot of o-rings in my hydraulic setup, and these 90 durometer Viton seals fit perfectly on the first try with no leaks. The pack of 300 is a solid value for the price, and they handled my 300°F test with no softening.

I've used these in a few high-heat applications now and they've held up perfectly, no cracking or swelling. The 90 durometer feels sturdy enough for the tight seals I needed.

The 90 durometer is noticeably stiffer than the 70s I usually grab, but that's exactly what I needed for a high-heat seal. The pack of 300 is solid value, and so far they've held up fine in the 350°F range without any issues. Only wish the size selection was a bit more varied in this bulk quantity.