# Dichtomatik ST219 PTFE Backup Ring - Single Turn Split, Anti-Extrusion Ring for O-Ring Grooves - MROSupply.com

***Dichtomatik ST219 PTFE single turn split backup ring prevents O-ring extrusion in high-pressure static and dynamic applications. PTFE material offers broad chemical compatibility and a temperature range of -100°F to +500°F. Suitable for hydraulic and pneumatic sealing systems requiring reliable anti-extrusion protection.***



## Product details:

- Catalog number: 75089422
- SKU: 2806126
- Price: ***$1.38*** Each
- Quantity: This vendor has a minimum order quantity of
38.Order minimum ($) may be applied.
Add desired QTY to cart and proceed to checkout to view minimum'

- Brand Minimum Order Quantity - 38
(This is the minimum order quantity if ordering this unit alone
from the vendor. Adding other products from the same vendor will reduce
the overall requirement. If adding multiple products from same vendor,
please add all products to cart to see total minimum.)
- 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: 0.002 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: 219
  

  
- Domestic/Import: Import
  

  
- I.D.: 1-5/16 in
  

  
- Material: PTFE
  

  
- O.D.: 1-9/16 in
  

  
- Temperature Rating: -65 to 500 deg F
  

  
- Thickness: 0.029 in
  

  
- Type: 1-Turn
  

  
- Width: 0.122 in
  


## Product's reviews:
- My new supplier - Thanks for your help with finding the seals I needed.
You were fast and reasonable with the shipping, The price was also good, your communications before and after the sale was very appreciated again thanks for your help I will be back!!! Steve G
- Perfect fit - I like this company. They had exactly what I needed for a cheaper price than competitors and free shipping. The quality is good, I'll return in the future.
- Axle seal 172373 - It worked.
- Order can fast and worked - Got a part for my 1972 Gravley plow worked perfect