حلقات O من مطاط بونا-إن نيتريل | AS568-908 | داش 908 | صلابة 90 (1000 / عبوة)

I’ve been using these 908 o-rings in a pneumatic setup that cycles constantly at 200°F, and the 90 durometer holds up perfectly without any swelling. The pack of 1000 covers multiple rebuilds.

Needed a bulk stash of 908s for a hydraulic rebuild and these hit the spec dead-on, the -40°F to +250°F range gives me peace of mind for outdoor gear. A thousand rings in one box means I won't be reordering for a while, which is exactly the kind of headache I wanted to avoid.

The 90 durometer rating is exactly what I needed for a high-pressure hydraulic fitting that kept weeping with softer rings. These held up fine at 220°F in the hot oil circuit, and at a thousand per pack I won't be running out for a long time.