8. Parbak - Back up rings - O-Rings-Stock O-Ring Webshop
O-Rings? O-yeah! How to Select, Design, and Install O-Ring Seals – Tarkka
What are Back-up Rings/Anti Extrusion Rings Guide - Barnwell : Barnwell
Back-up Rings 101: What Are They? | DCW
Back-up Ring | Statiske Tætninger | Trelleborg
Back-Up Rings | Anti-Extrusion Rings | American High Performance Seals
Basic Knowledge [Sealing Business] | AIR WATER MACH INC.
Why an O-Ring Works - Seal Design Guide | Apple Rubber Products
Back Up Rings for O Rings | Specialist Sealing Products
Global O-Ring and Seal, LLC - Requesting for backup? We have backup rings readily available in NBR, Viton, and Teflon (Solid, Split, and Spiral versions). Use our Backup Ring Size Chart here
Plastic Backup Ring Sizes - Kalsi Engineering, Inc.