Buna-N 70 O-rings

 Buna-N 70 O-rings

Buna-N 70 Durometer O-Rings are the most common material O-Rings produced. Buna-N also known as Nitrile rubber, NBR, or acrylonitrile butadiene. It is the least expensive of the oil resistant elastomers, and is readily available in all AS568 O-Rings and most Metric O-Ring sizes. As well as the individual O-Rings, we stock a good variety of Buna-N O-Ring Kits on our online store. This material is also very common in Hydraulic and Pneumatic Seals.

Most common products of Buna-N 70 O-Rings

- AS568 O-Rings Buna-N 70
- Metric O-Rings Buna-N 70
- Max Truck Kit Buna-N 70
- Industrial Standard O-Ring Kit K436X36N70
- 12 Popular Sizes K200X12N70


Basic Physical Properties:

	Excellent	Good	Fair	Poor
Abrasion resistance	•
Compression Set		•
Elongation		•
Flame resistance				•
Gas permeability		•
Low temperature flexibility		•
Tear resistance		•
Tensile strength		•

Basic Chemical Resistances:

	Excellent	Good	Fair	Poor
Brake fluid				•
Dilute acids		•
Dilute alkalis		•
Hydraulic fluids		•
Ketones				•
Ozone				•
Petroleum oils	•
Silicone Fluids	•
Steam			•
Strong acids				•
Transmission fluids		•
Water	•
Weather				•