Home Products O Ring Seal

NBR70 O-Ring | O Ring Seal | Industrial Oil-Resistant Seal

All Products

Rubber Oil Seal (38)

Automotive Oil Seals (23)

Truck Oil Seals (26)

Trailer Oil Seals (54)

PU Oil Seal (31)

Oil Lip Seal (26)

Rubber Dust Boot (17)

Washing Machine Seal (12)

PTFE Flat Washer (47)

O Ring Seal (63)

Molded Rubber Parts (74)

Custom Rubber Gaskets (53)

Metal Sealing Washer (15)

Machined Metal Parts (25)

Plastic Molded Parts (48)

Metal Fixings And Fasteners (14)

Mechanical Shaft Seal (45)

Valve Stem Oil Seals (20)

Engine Repair Parts (44)

Fiber Gland Packing (10)

Certification

I'm Online Chat Now

NBR70 O-Ring | O Ring Seal | Industrial Oil-Resistant Seal

Large Image : NBR70 O-Ring | O Ring Seal | Industrial Oil-Resistant Seal

Product Details:

Place of Origin:	CN
Brand Name:	GSK
Certification:	TS16949
Model Number:	281518763

Payment & Shipping Terms:

Minimum Order Quantity:	1000pcs
Price:	USD0.30-USD0.50/pcs
Packaging Details:	Neutral
Delivery Time:	30days
Payment Terms:	T/T
Supply Ability:	50000/30days

Contact Now

Detailed Product Description

Highlight:

NBR70 O-Ring oil-resistant seal

industrial O-Ring seal

O-Ring seal with warranty

NBR70 O-Ring | O Ring Seal | Industrial Oil-Resistant Seal

Product Description

This A120 NBR70 O-Ring, sized 25x2.62mm, is a reliable industrial sealing component made of premium nitrile butadiene rubber. Formulated to 70 Shore A hardness, it balances elasticity and structural stability, delivering consistent sealing performance between -40°C and 120°C. The black, one-piece circular design fits standard seal grooves in industrial pumps, hydraulic valves, and automotive gearboxes, creating a durable barrier against oil, gas, and fluid leakage. Its NBR70 material offers excellent resistance to mineral oils, hydraulic fluids, and wear, making it suitable for both static and dynamic sealing applications in harsh industrial environments.

TECHNICAL PARAMETERS

Category	Details
Product Name	NBR70 O-Ring
Part Number	A120
Material	NBR (Nitrile Butadiene Rubber), black
Color	Black
Core Functions	Sealing, oil resistance, vibration damping
Design Feature	Standard circular cross-section
Application	Industrial machinery, hydraulic systems, automotive components

Advantages

Excellent Oil Resistance: NBR70 material exhibits strong tolerance to mineral oils, hydraulic fluids, and petroleum-based media, ideal for oil-contact applications.
Optimized Hardness & Elasticity: The 70 Shore A hardness formula provides a balance of sealing pressure and resilience, maintaining a tight seal even under dynamic conditions.
Wide Temperature Range: Operates reliably from -40°C to 120°C, adapting to fluctuating temperatures in industrial and automotive settings.
Durable & Long-Lasting: Resists compression set, tearing, and aging, extending service life and reducing maintenance costs.
Universal Compatibility: Standard circular cross-section and precise dimensions fit most equipment seal grooves, enabling direct, tool-free installation.

Applications:

Seals hydraulic system cylinders, valve blocks, and pumps to prevent fluid leakage and maintain pressure stability.
Acts as an oil seal in automotive gearboxes and transmissions, protecting lubrication systems and reducing component wear.
Provides dust and moisture protection for industrial machinery enclosures, extending component lifespan in harsh environments.
Reduces vibration transmission between mating surfaces, improving equipment stability and minimizing operational noise.
Ensures leak-proof performance in pneumatic systems, supporting consistent operation of air cylinders and valves.