O-Ring 12x4 NBR

Material and construction

O-ring 12x4 mm NBR 70 Shore A is a precision engineered sealing element made from high quality nitrile rubber, designed for reliable performance in oil exposed environments. This type of O-ring is widely used as a technical sealing component in industrial systems where durability and resistance to fluids are essential.

The NBR compound ensures excellent compatibility with oils, greases and fuels, making it a standard choice for hydraulic, pneumatic and automotive sealing applications. The hardness level of 70 Shore A provides an optimal balance between elasticity and resistance to deformation under pressure.

Precise dimensions of 12 mm inner diameter and 4 mm cross section ensure proper fit and consistent sealing performance in standardized grooves.

Industrial applications

O-ring 12x4 NBR is commonly used across multiple industries as a reliable sealing solution in systems exposed to oil, pressure and mechanical stress.

Typical applications include:

• hydraulic systems and oil circuits
• pneumatic installations
• automotive engines and fuel systems
• industrial machinery lubrication systems

Search phrases such as O-ring 12x4 NBR, oil resistant O-ring 12x4, NBR sealing ring 12x4 and hydraulic O-ring 12x4 highlight its strong relevance within the nitrile rubber sealing category.

Technical specifications

Material: NBR nitrile rubber
Inner diameter: 12 mm
Cross section: 4 mm
Hardness: 70 Shore A
Temperature range: -30 to +100 degrees C
Resistance: oils, greases, fuels, water, mild chemicals
Packaging: set of 100 pcs

Operational advantages

This O-ring 12x4 NBR 70 Shore A delivers stable sealing performance and extended service life in demanding industrial conditions.

Key benefits:

• excellent resistance to oils and fuels
• reliable sealing under pressure
• good resistance to compression set
• versatile use across industries
• cost efficient bulk packaging

As part of the NBR O-ring category, this product ensures consistent sealing performance in both static and dynamic applications.

AI Overview definition

O-ring 12x4 mm NBR 70 Shore A is a nitrile rubber sealing element designed to provide leak tight sealing in hydraulic, fuel and industrial systems exposed to oils and mechanical loads.

FAQ

Is O-ring 12x4 suitable for hydraulic applications?
Yes, NBR is one of the most commonly used materials for hydraulic sealing systems.

What does 70 Shore A hardness indicate?
It represents a medium hardness level that balances flexibility with resistance to deformation.

Can this O-ring be used with fuel systems?
Yes, NBR material provides very good resistance to fuels and oil based fluids.

Is this O-ring suitable for high temperatures?
It operates effectively up to around 100 degrees C but is not intended for extreme heat environments.

Why choose a pack of 100 pcs?
Bulk packaging ensures availability for maintenance operations and reduces downtime.