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RS PRO Nitrile Rubber (NBR) O-Ring, 39.5 mm Inside Diameter, 45.5 mm Outside Diameter, 3 mm Thickness, Shore 70 128-978
Specifications
| Country of Origin | Italy |
|---|---|
| Brand | RS PRO |
| Material | Nitrile Rubber (NBR) |
| Colour | Black |
| THICKNESS | 3mm |
| Model | 128-978 |
| Outside diameter | 45.5mm |
| Maximum Operating Temperature | 120°C |
| Hardness | Shore 70 |
| Sub Type | O-Ring |
| Inside Diameter | 39.5mm |
| Minimum Operating Temperature | -30°C |
| RS PRO Nitrile Rubber (NBR) O-Ring O-Ring, 40 mm ID, 45.3 mm ODBrand | RS PRO |
Key Features
- Constructed from durable Nitrile Rubber (NBR) for excellent petroleum resistance.
- Operates continuously between -40°C and 110°C with short-term tolerance up to 135°C.
- Hardness rating of Shore 70 ensures reliable abrasion resistance.
- Designed for sealing in automotive, aerospace, and general engineering applications.
- Manufactured in Italy ensuring quality and consistency.
- Black color suitable for identification and application standards.
- Complies with BS4518 tolerance standards for precise fitting.
Product Description
RS PRO 128-978 Nitrile Rubber (NBR) O-Ring is a precision sealing component with a 39.5 mm inside diameter, 45.5 mm outside diameter, and 3 mm thickness. Featuring a Shore 70 hardness rating, this black O-Ring is crafted from nitrile rubber, known for its exceptional resistance to petroleum products and abrasion, making it ideal for a wide range of industrial sealing applications.
This O-Ring supports continuous operating temperatures from -40°C to 110°C and can withstand short-term peaks up to 135°C, making it suitable for use in both low and high-temperature environments. The tolerance adheres to BS4518 standards, ensuring reliable and exact sealing performance.
Typical applications include automotive sealing systems, aerospace components, and general engineering machinery where resistance to mineral hydraulic oils and greases is required. The O-Ring’s robust material composition also makes it effective in industrial fluid power tools and equipment maintenance.
Manufactured in Italy, the RS PRO 128-978 ensures premium quality and conforming to industry best practices. It should be noted that Nitrile Rubber (NBR) is not suitable for use with esters, ozone, retones, aldehydes, chlorinated, or nitro carbons.
Durable Nitrile Rubber construction offers excellent abrasion resistance. Shore 70 hardness for consistent sealing integrity under varied conditions. Wide operating temperature range from -40°C to 110°C, with short-term up to 135°C.
Compliant with BS4518 tolerances for precision sealing. Black color for easy identification and standardization. Suitable for automotive, aerospace, and general engineering use cases. Manufactured in Italy ensuring high quality.
Explore the extensive range of RS PRO sealing solutions for reliable and cost-effective maintenance in industrial, laboratory, construction, and HVAC sectors. Discover more products and technical innovations by browsing EnvMart’s Mechanical Machinery & Spares category.
Explore more products in our Seals & Gaskets category.
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Frequently Asked Questions
This O-Ring has an inside diameter of 39.5 mm, an outside diameter of 45.5 mm, and a thickness of 3 mm.
The maximum operating temperature for this O-Ring is 120°C, with short-term tolerance up to 135°C.
It is constructed from Nitrile Rubber (NBR), which provides excellent resistance to petroleum products and abrasion.
This O-Ring has a hardness rating of Shore 70, ensuring reliable sealing performance under various conditions.
The minimum operating temperature for this model is -30°C.
This O-Ring is suitable for automotive sealing systems, aerospace components, and general engineering machinery.
Yes, it complies with BS4518 tolerance standards for precise fitting.
The O-Ring is black in color, which is suitable for identification and application standards.
This O-Ring is manufactured in Italy, ensuring quality and consistency.
Nitrile Rubber (NBR) is not suitable for use with esters, ozone, retones, aldehydes, chlorinated, or nitro carbons.
The thickness of this O-Ring is 3 mm.
The Shore 70 hardness rating ensures consistent sealing integrity and reliable performance under varied conditions.
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