حلقات O-ring من Viton FKM بقطر داخلي 2.609 بوصة وقطر مقطع 0.139 بوصة | AS568-231 | داش 231 | حلقة X | صلابة 70 (15 / عبوة)

I needed o-rings that could handle higher heat for a seal repair on an industrial dryer, and these Viton FKM ones fit the bill perfectly. The 0.139" cross-section seated snugly in the groove, and they've held up fine through several hot cycles so far.

The temperature rating is exactly what I needed for a high-heat seal application, and the 70 durometer feels just right—not too stiff, not too soft. These Viton FKM rings slid into place perfectly and show no signs of swelling after a week of use.

Finally got these to replace some worn-out standard o-rings on a hot oil system, and the FKM material is handling the 350°F operating temps perfectly so far. The 70 durometer feels just right for sealing without being too stiff.