What are Back-up Rings/Anti Extrusion Rings Guide - Barnwell : Barnwell
Backup Ring EA423RD-22A | ESCO | MISUMI Thailand
ST221 Single Turn Split PTFE Back-Up Ring [ST221] : The O-Ring Store LLC, We make getting O-Rings easy!
Back-Up Rings | Anti-Extrusion Rings | American High Performance Seals
575-115T Teflon Backup Ring
Backup Rings (BUR) – CTG, Inc.
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