حلقات O-Ring من بونا-ن نيتريل 0.139" مقطع × 1.421" قطر داخلي | AS568-221 | داش 221 | صلابة 90 (400/عبوة)

The 90 durometer hardness is exactly what I needed for a high-pressure seal, and the batch of 400 means I won't run out for years. Tolerances were spot-on when I checked a few with calipers, and they slid into the grooves without any twisting. Temperature range covers our hot and cold cycles, so I'm

Needed a batch of these for a pneumatic project and the 90 durometer feels just right. Fit perfectly in the groove, and they arrived well-packed without any deformation.

Replaced a worn seal in a hydraulic fitting and these 90-durometer rings held up fine so far, the 1.421" ID is right on spec. Pack of 400 is a lot, but the price per ring makes it worth having spares.