حلقات O-Ring HNBR CS 0.103 بوصة × ID 0.986 بوصة | AS568-120 | داش 120 | صلابة 90 (60/عبوة)

The 90 durometer hardness feels reassuringly solid when I pop them in place, and the 0.986" inner diameter seats perfectly on my fitting. Already have spare packs on the way for the hotter lines in my setup—the -40°F to 300°F range covers everything I need.

These fit perfectly on the valve stems I'm rebuilding, and the 90 durometer hardness gives me confidence they'll hold up under pressure. Only gripe is the packaging—a couple came out slightly pinched, but they seated fine after a quick inspection.

The temperature range is what sold me, since my application cycles between freezing and hot. These feel properly dense at 90 durometer, and the sizing is spot-on for the spec. Only gripe is that sixty rings per pack is more than I'll use in a lifetime, but the price makes it a non-issue.