حلقات O-ring من Viton FKM مقاس 0.139" CS × 2.734" ID | AS568-232 | داش 232 | صلابة 90 (50 / عبوة)

The 90 durometer hardness is spot on for what I needed—these held up fine in my compressor where softer seals kept deforming. Fifty in the pack means I'll have spares for years, and the tight size tolerance made installation straightforward.

These handled the 400°F steam in our autoclave without any sign of hardening after the first cycle. The 90 durometer gives them a bit more stiffness than standard ones which made installation easier in a tight groove.

Finally, o-rings that don't give out after a single season in my hot oil bath — the 90 durometer Viton feels solid. The 2.734" inner diameter fits my valve housing perfectly, and the package of 50 should last me years.