حلقات O من النيوبرين 0.139 بوصة CS × 0.734 بوصة ID | AS568-210 | داش 210 | صلابة 70 (400/عبوة)

Finally, an o-ring that doesn't dry out and crack after a few months in the heat – these handle up to 250°F just fine. The 70 durometer feels firm enough for a good seal on my fuel lines without being a struggle to install. Exactly what I needed for a bulk pack.

I've been using these neoprene o-rings in a hot water valve application, and they're holding up perfectly at 200°F without any softening. The 70 durometer gives just the right amount of squeeze for a leak-free seal.

Got these for a small pneumatic repair project and the 400-count pack is way more than I'll ever need, which is fine. They slipped into place easily and the -45°F rating gives me confidence for cold-weather equipment.