HNBR (HSN) O-Rings Manufacturer & Supplier

HNBR (Hydrogenated Nitrile Butadiene Rubber), also known as HSN, is a high-performance elastomer developed from NBR. HNBR O-Rings offer superior heat resistance, oil resistance, mechanical strength, and long service life, making them ideal for demanding industrial applications.

HNBR O-Ring Material Properties

• Temperature range: -40°C to +150°C (up to +165°C for special grades)
• Excellent resistance to oils, fuels, and hydraulic fluids
• Superior abrasion, wear, and tear resistance
• Outstanding ozone and aging resistance
• Available hardness: 70 / 80 / 90 Shore A

Advantages of HNBR (HSN) O-Rings

• Better heat resistance than standard NBR O-Rings
• Improved chemical stability and longer service life
• Excellent performance under high pressure conditions
• Ideal for harsh and demanding operating environments

Typical Applications

• Automotive engines and powertrain systems
• Oil & gas sealing equipment
• Hydraulic systems and pumps
• Industrial compressors and valves
• High-temperature and high-pressure sealing applications

Available Standards & Sizes

• AS568 (Inch sizes)
• ISO 3601 (Metric sizes)
• DIN 3771 (Metric sizes)
• Custom HNBR O-Rings available

HNBR vs NBR O-Rings

HNBR O-Rings provide significantly improved heat resistance, ozone resistance, and mechanical strength compared to standard NBR O-Rings. For applications requiring higher temperatures, longer service life, and improved durability, HNBR is the preferred upgrade solution.

Custom HNBR O-Rings Manufacturing

We supply custom HNBR O-Rings with various hardness levels, formulations, and dimensions. OEM and ODM manufacturing services are available to meet strict industry and application requirements.

Request a Quote for HNBR (HSN) O-Rings

Send us your drawing, size standard, operating temperature, media, and quantity. Our engineering team will provide a fast and professional quotation.