O-ring, 16mmID x 21mmOD 2.5mm Cross Section Nitrile Metric

Please read this whole section! – Most C3 parts have their own dedicated webpage, but we wanted to make all parts available to you. This is where to buy odds and ends that are not listed elsewhere, organized by part number.

Important: it’s not recommended that you buy these spare parts online unless you’re confident you’ve determined the correct part numbers for your requirements. Often that’s because we’ve sent you here with a recommendation, or you are getting another of something you already have.

Of course, we are happy to help if you need! Chat box in the corner.

Lastly, please note that the “In-Stock” inventory levels are not monitored on these pages. IE: it’s possible that some of these parts are out of stock. As always, the best place for stock updates are the main product pages themselves.