حلقات O من النيوبرين 0.139" CS × 1.109" ID | AS568-216 | داش 216 | صلابة 70 (200/عبوة)

Used these neoprene o-rings to replace a set of old gaskets in a pneumatic fitting and the -45°F cold rating was exactly what I needed. The dash 216 size fit perfectly and the pack of 200 will last me years.

The 70 durometer feels just right for creating a solid seal on my hydraulic fittings without being too hard to compress. I've used about 30 so far and none have leaked in the 0-100°F range I operate in.

Used a dozen already for sealing a coolant line on an old farm pump, and the -45°F rating gives me peace of mind for our brutal winters. The neoprene feels a bit stiffer than the Buna-N ones I've used, but it's holding pressure perfectly.