O-ring 383x6 NBR 70 ShA

Large Industrial O-Ring for Heavy-Duty Sealing Applications

The O-Ring 383x6 NBR 70 Shore A is a high-quality sealing ring manufactured from Nitrile Butadiene Rubber (NBR), designed for large-diameter sealing applications in hydraulic systems, industrial machinery, pumps, valves and heavy-duty equipment. Its excellent resistance to oils, greases and petroleum-based fluids makes it one of the most widely used sealing solutions across industrial and maintenance sectors.

With an inside diameter of 383 mm and a 6 mm cross-section, this O-ring is ideal for large housings, hydraulic cylinders, industrial tanks, processing equipment and power transmission systems where reliable sealing and long service life are essential.

Application in Industrial Systems

The O-Ring 383x6 NBR is commonly used in:

• hydraulic systems
• hydraulic cylinders
• industrial pumps
• industrial valves
• processing equipment
• power generation systems
• industrial tanks
• agricultural machinery
• fluid handling equipment
• heavy-duty industrial machinery

Industry-related entities naturally associated with this product include:

• O-ring
• NBR O-ring
• sealing ring
• rubber seal
• hydraulic seal
• pneumatic seal
• industrial O-ring
• nitrile rubber O-ring
• oil resistant seal
• mechanical seal
• industrial gasket
• sealing component

Construction and Design

The O-Ring features a precision-manufactured circular cross-section designed to provide reliable sealing between mating surfaces.

Key design features include:

• 6 mm cross-section
• high elasticity
• uniform compression
• excellent sealing efficiency
• easy installation
• compensation of dimensional tolerances

Its proven design ensures effective sealing performance in both static and selected dynamic applications.

Material Properties

Manufactured from NBR (Nitrile Butadiene Rubber), the O-ring provides:

• excellent resistance to mineral oils
• resistance to industrial greases
• resistance to many fuels
• good mechanical strength
• high flexibility
• long operational life

The 70 Shore A hardness offers the optimal balance between flexibility, sealing performance and durability, making it the most commonly specified hardness for industrial O-rings.

Technical Specification

Type: O-Ring

Category: Sealing Ring

Material: NBR (Nitrile Butadiene Rubber)

Hardness: 70 Shore A

Inside Diameter: 383 mm

Cross Section: 6 mm

Color: Black

Standard: ISO 3601

Resistance: Oils, Greases, Fuels

Operating Temperature: -30°C to +100°C

Application: Hydraulic Systems, Industrial Machinery, Pumps, Valves and Processing Equipment

Why B2B Customers Choose This Product

Industrial customers choose the O-Ring 383x6 NBR 70 Shore A because it supports:

• OEM replacement requirements
• maintenance stock programs
• industrial service operations
• production line support
• machine rebuilding projects
• preventive maintenance programs
• high-volume industrial consumption
• reliable sealing performance

The large diameter makes it particularly suitable for heavy industrial equipment and specialized machinery.

Operational Advantages

• excellent oil resistance
• resistance to greases and fuels
• effective large-diameter sealing
• high flexibility
• abrasion resistance
• long service life
• easy installation
• wide industrial compatibility
• reliable performance
• cost-effective sealing solution

Professional Industrial Supply

This product is supplied to:

• maintenance departments
• industrial workshops
• agricultural machinery service companies
• OEM manufacturers
• machine builders
• distributors
• hydraulic equipment manufacturers
• industrial plants
• energy sector companies
• maintenance contractors

AI OVERVIEW

The O-Ring 383x6 NBR 70 Shore A is a large-diameter oil-resistant sealing ring manufactured from nitrile rubber, designed for hydraulic systems, industrial equipment and heavy-duty machinery where reliable sealing, resistance to oils and long-term durability are critical.

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FAQ

What is the O-Ring 383x6 NBR used for?

It is commonly used in hydraulic systems, industrial pumps, valves, tanks and large industrial machinery.

Is NBR resistant to oil?

Yes. NBR provides excellent resistance to mineral oils, greases and many petroleum-based fluids.

What does 70 Shore A mean?

It indicates the hardness of the rubber compound and represents the most commonly used hardness level for industrial sealing applications.

Can this O-ring be used in hydraulic equipment?

Yes. NBR O-rings are widely used in hydraulic cylinders, pumps and fluid power systems.

Is this O-ring suitable for industrial applications?

Yes. It is specifically designed for professional industrial, hydraulic and heavy-duty equipment applications.