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AS5.00x1.00-70N Nitrile Oring (Metric Size 1.00 CS x 5.00 ID)
Model: AS5.00x1.00-70N
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AS5.00x1.00-70N Nitrile Oring (Metric Size 1.00 CS  x 5.00 ID)
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AS5.00x1.00-70N Nitrile Metric O-Ring (Size in Millimeters: 1.00 CS x 5.00 ID)

Nitrile is the most widely used elastomer in the seal and o-ring industry. Its popularity results from the ability to sustain performance across a wide temperature range (-22F to 212F), and its excellent resistance to petroleum-based products. Additionally, nitrile material exhibits superior compression set, tear and abrasion resistance. Limiting properties of nitrile include poor ozone and weather resistance, with only a moderate resistance to high heat. However, in many applications these are not restricting factors. Nitrile is often referred to as Buna (Buna-N) and NBR.

The metric nitrile AS5.00x1.00-70N o-ring can be referenced by either of the following dimensions:

  • Standard dimensions: (CS 0.039" x ID 0.197")
  • Metric dimensions: (CS 1.00 x ID 5.00)

The final consideration for an o-ring after size and material type is the durometer. Durometer is an industry standard measurement for a material’s hardness. Most often for rubber seals, durometer is measured and listed in accordance with the “Shore A” scale. Typical durometers for standard rubber seals are 70, 75 and 90, depending on the material. A higher number indicates a harder material. Durometer is also generally stated and accepted with a “+/- 5” tolerance. For nitrile o-rings, standard nominal durometers are 70 and 90.

Primary Uses:

O-Rings, rubber seals and custom molded rubber components for:

  • Standard Oil resistant applications
  • Custom Low temperature applications
  • Specialized Fuel systems, automotive, marine, and aircraft
  • General Industrial Use
  • Model Number: AS5.00x1.00-70N
  • Manufacturers Part Number: AS5.00x1.00-70N
  • Material Type: Nitrile, Buna-N, NBR
  • Durometer (ShoreA): 70
Temperatures Range (Dry Heat)
Low: High:
-22`F / -30`C 212`F / 100`C
Metric Nitrile O-Ring Application Ratings
Properties Excellent Good Fair Poor
Oils & Grease  
Nitrile O-Ring Resistance is Good vs Oils & Grease
Tear Strength  
Nitrile Exhibits Good Tear Strength
Fuel Resistance      
Nitrile is Poor vs Standard Fuels
Gas Impermeability  
Nitrile Exhibits Good Gas Impermeability Ratings
Nitrile has an excellent compression set
Abrasion Resistance  
Nitrile has good abrasion resistance
Metric Nitrile O-Ring Number Dimensions CS x ID

AS5.00x1.00-70N (Durometer 70) cross reference sizes

  • Actual Size: 0.039" x 0.197"
  • Metric Size Millimeters: 1.00 x 5.00
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Currently viewing: AS5.00x1.00-70N | Nitrile Metric O-ring 70 Durometer (Buna-n / NBR)
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