O-Ring 720.00mm x 8.40mm nitrile-nbr-9237 70 ShA black -30°C to +100°C

Nitrile (NBR) is a popular material for O-rings due to its excellent resistance to oils, fuels, and other chemicals, making it ideal for automotive, industrial, and fluid sealing applications. The material offers good mechanical properties, including high tensile strength and resilience, and performs well in a wide range of temperatures. However, NBR has some limitations; it is prone to degradation when exposed to ozone, weathering, and high temperatures, which can cause it to become brittle over time. Additionally, NBR has limited resistance to certain chemicals, such as ketones and esters, and may not be suitable for environments with extreme chemical exposure or very high-temperature conditions. Despite these cons, its cost-effectiveness and broad chemical compatibility make NBR O-rings a commonly used choice in various sealing applications.

Dimensions:

720mm ID x 8.4mm CS
ID Tolerance: {{product_data_physicals.internal_diameter_tolerance}}mm
CS Tolerance: {{product_data_second_physicals.cross_section_tolerance}}mm

Material Properties:

Hardness: 70 ShA
Colour: Black
Temperature Range: -30°C to +100°C

Approvals:

DVGW EN549

Key Benefits of Nitrile (NBR) O-Rings:

Broad Chemical Resistance
Cost-Effective
The Most O-ring Sizes Available

Chemical Resistance:

Strong resistance to oils, fuels, and a variety of hydrocarbons.
Good protection against a wide range of chemicals, including acids, alkalis, and solvents.

Not Compatible With:

Aromatic hydrocarbons
Chlorinated hydrocarbons
Ketones
Esters
Strong acids and bases

Key Applications:

Automotive
Chemical Processing
Oil & Gas
Pharmaceuticals
Marine and Outdoor Equipment