حلقات O من بونا-إن نيتريل | 0.103" قطر داخلي × 0.206" قطر خارجي | AS568-107 | داش 107 | صلابة 90 (1300/عبوة)

These 90-durometer o-rings fit perfectly on a pneumatic actuator I rebuilt for a food processing line. The size is spot on for the groove depth, and the nitrile material held up well during initial pressure testing. Exactly what I needed for this application.

Had a leak in an old hydraulic fitting that nothing seemed to seal, but these 90 durometer rings finally stopped it. The tight 0.206" inner diameter fit perfectly in the groove, and they haven't softened up at all after a week of use.

The durometer on these is noticeably firmer than the generic ones I've used before, which should hold up better in the pneumatic cylinder I'm rebuilding. They seat well and the 1300 count means I won't have to reorder for a long time.