Ring SS, Backup, Kinney, Rotary Piston, Part# 801237 – vacstellar

 This stainless steel backup ring is a Kinney replacement part for rotary piston vacuum pumps. It is used behind O‑rings or seals to prevent them from extruding (squeezing out) under pressure. Made from durable stainless steel, it provides reliable support in demanding applications. Part number 801237 ensures a fit during pump rebuild or maintenance. Using a Kinney backup ring ensures the dimensions are exact. A ring that is too thick could pinch the seal. One that is too thin might not provide enough support Choosing this Kinney stainless steel backup ring means you are using a part that meets exact factory specifications. It is a small component that helps ensure your pump’s seals last and perform reliably.