حلقات O-Ring من Viton FKM 0.139 بوصة CS × 0.671 بوصة ID | AS568-209 | داش 209 | صلابة 75 | أسود (65/عبوة)

Nice to finally have o-rings that hold up at high temps—I’ve had cheaper ones fail in an hour. These 75 durometer FKM seals fit perfectly on my compressor manifold and handle 350°F without any melting.

The 75 durometer hardness is exactly right—firm enough to hold pressure but they still seated into the groove without fighting me. I grabbed a pack of 65 for inventory and the -15°F to 400°F range covers everything I've got on the bench.

Replaced the worn-out seals on my air compressor and these fit the groove perfectly. The 75 durometer feels firm but pliable enough to seat without fighting me.