HNBR65K Washer | Rubber Gasket | High-Temp Oil-Resistant Seal
HNBR65K Washer | Rubber Gasket | High-Temp Oil-Resistant Seal
Product Description
This HNBR70K O-Ring, sized 19x2.6mm, is a high-performance sealing component engineered for demanding oil-contact environments. Made from hydrogenated nitrile butadiene rubber, it delivers reliable sealing between -40°C and 150°C, with superior resistance to mineral oils, hydraulic fluids, and ozone. The black, one-piece circular design fits standard seal grooves in automotive engines, hydraulic valves, and industrial pumps, creating a durable barrier against fluid leakage. Its HNBR70K material offers exceptional anti-aging and compression set resistance, ensuring long-term performance even under dynamic operating conditions, making it ideal for critical sealing applications.
TECHNICAL PARAMETERS
| Category | Details |
| Product Name | HNBR70K O-Ring |
| Part Number | 281518765 |
| Material | HNBR65K (Hydrogenated Nitrile Butadiene Rubber), black |
| Color | Black |
| Core Functions | Sealing, vibration damping, oil resistance, anti-aging |
| Design Feature | Flat washer-style circular design with central hole |
| Application | Automotive engines, hydraulic systems, industrial pumps, mechanical assemblies |
Advantages
- Superior Oil & Heat Resistance: HNBR65K withstands -40°C to 150°C, resisting mineral oils and hydraulic fluids better than standard NBR.
- Anti-Aging & Durability: Resists ozone, oxidation, and compression set, extending service life by 2–3 times compared to NBR washers.
- Vibration Damping & Sealing: Flat design absorbs mechanical vibration and creates a tight seal, preventing fluid leakage and reducing equipment noise.
- Universal Compatibility: Standard central hole fits most bolt sizes, enabling direct installation in automotive and industrial assemblies.
- Consistent Performance: Precision dimensions and high-grade material ensure reliable sealing and damping in harsh operating environments.
Applications:
- Seals automotive engine bolt assemblies and oil pan interfaces to prevent oil leakage and maintain lubrication efficiency.
- Reduces vibration transmission in hydraulic system valve blocks and pump mounts, improving equipment stability.
- Provides a damping layer between metal components in industrial machinery, minimizing wear and operational noise.
- Creates a dust and moisture barrier for mechanical enclosures, protecting internal components from contaminants.
- Ensures leak-proof performance in gearbox and transmission fasteners, supporting smooth vehicle operation.
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