# Dichtomatik ST450S PTFE Solid Backup Ring for High-Pressure Sealing - MROSupply.com

***Dichtomatik ST450S PTFE solid backup ring prevents O-ring extrusion in high-pressure static and dynamic sealing applications. PTFE backup rings offer excellent chemical resistance and a wide temperature range from -100°F to +500°F. Suitable for use in hydraulic and pneumatic systems where O-ring support is critical.***



## Product details:

- Catalog number: 75089694
- SKU: 2810528
- Price: ***$68.70*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Dichtomatik](https://www.mrosupply.com/brands/dichtomatik/)
- Category: 
    - [Standard Flat Back-Up Rings](htts://www.mrosupply.com/seals/back-up-rings/standard-flat-back-up-rings/)
    - [Back-Up Rings](htts://www.mrosupply.com/seals/back-up-rings/)
    - [Seals](htts://www.mrosupply.com/seals/)
- Unit of measure: each
- Weight: 0.065 lb
- Technicall support: contact supplier for technical support on 800 328 2840


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- Dash Number: 450
  

  
- Domestic/Import: Import
  

  
- I.D.: 10-1/2 in
  

  
- Material: PTFE
  

  
- O.D.: 11 in
  

  
- Temperature Rating: -65 to 500 deg F
  

  
- Thickness: 0.052 in
  

  
- Type: Solid
  

  
- Width: 0.239 in
  


## Product's reviews:
- Great product easy ordering - Ordering was easy products were correct and all was a great experience
- Order can fast and worked - Got a part for my 1972 Gravley plow worked perfect
- Seals - Fast delivery, very resonable cost
- Awesome - works grate