حلقات O من النيوبرين 0.139" CS × 0.484" ID | AS568-206 | داش 206 | 70 صلابة (500 / عبوة)

The temperature range on these is what sold me—I needed something that could handle -45°F without cracking, and they’ve held up perfectly in the freezer test. The 70 durometer stiffness feels just right for a snug seal, and the bulk pack means I’m set for months.

The 70 durometer hardness feels just right for my rebuilds—firm enough to seat properly without fighting me during installation. I've used a handful so far and they've held up fine at room temp, though I haven't pushed them near the 250°F limit yet.

The -45°F lower limit is exactly what I needed for an outdoor hydraulic setup that sees brutal winters, and these have held up without cracking. The 70 durometer hardness feels just right for a snug seal, and the 500 count means I won't run out for a while.