Viton FKM O型環 0.103" CS x 0.674" ID | AS568-115 | Dash 115 | 硬度90 (300 / 包)

The temperature range on these is what sold me—I needed something that would hold up past 300°F and these are rated to 400. The 90 durometer feels plenty stiff for my application, and at 300 per pack I've got spares for years.

I replaced a worn-out seal on a hydraulic fitting that sees constant heat cycles, and these Viton o-rings haven't softened or cracked after weeks of heavy use. The 0.674" ID fit perfectly on the first try, and the 90 durometer holds its shape even when torqued down tight. A solid upgrade over standa

The 90 durometer hardness is exactly what I needed for a high-pressure seal, and the Viton handles the 350°F heat cycling without any softening. Three hundred in the bag means I've got spares for years, though the -15°F lower limit is worth noting if you're near freezing temps.