NBR75 O-Ring – High-Performance 75 Durometer NBR Sealing Solution
Our NBR75 O-rings are engineered from high-quality Nitrile Butadiene Rubber with a hardness rating of 75 Shore A, offering an ideal balance of durability, elasticity, fuel resistance, and long-term sealing performance. Manufactured by Xiamen Jinshun Sealing Technology Co., Ltd., a trusted China NBR O-ring manufacturer since 2002, these O-rings are designed for demanding applications across automotive, industrial, hydraulic, pneumatic, and oil-gas systems.
Whether you need custom sizes, colors, or OEM/ODM solutions, our NBR75 O-rings deliver reliability you can count on.
What Is an NBR75 O-Ring?
NBR75 refers to a nitrile O-ring made from Nitrile Butadiene Rubber (NBR) with a hardness of 75 Shore A-a widely used hardness level for sealing applications that require strength, fuel resistance, and stable performance under pressure.
This grade is known for:
- Excellent resistance to oils, fuels, and lubricants
- Good mechanical strength and abrasion resistance
- Reliable performance in low and high temperatures
- Long lifespan in hydraulic and pneumatic environments
Technical Specifications of NBR75 O-Rings
| Parameter | Details |
|---|---|
| Material | NBR (Nitrile Butadiene Rubber) |
| Hardness | 75 Shore A (available 40–90 Shore A) |
| Temperature Range | -40°C to +120°C |
| Size | Custom-made |
| Color | Custom-made |
| MOQ | 50 pcs |
| Origin | China |
| HS Code | 40169310 |
| Certifications | Meets GB / ASTM / NSF standards |
| Mold Time | ~15 days |
| Sample Time | 7–10 days |
| Production Lead Time | 12–18 days after sample approval |
| Packaging Options | PE bag, OPP bag, color box, PET box, or customized |
| OEM/ODM | Available |
Applications of NBR75 O-Rings
Thanks to their durability and chemical resistance, NBR75 O-rings are widely used in industries worldwide:
Automotive
- Fuel injectors
- Carburetors
- Transmission systems
- Oil seals
Industrial Machinery
- Hydraulic cylinders
- Pneumatic valves
- Compressors
- Pumps and actuators
Oil & Gas
- Drilling equipment
- Pipe connectors
- Valve sealing
Aerospace
- Fluid handling systems
- Hydraulic components
Water & Wastewater Treatment
- Pumps, filters, and valve assemblies
Electronics & Home Appliances
- Fluid control systems
- Sealed housings
NBR75 is preferred when stability, oil resistance, and long-term sealing are critical.
Why Choose Xiamen Jinshun Sealing for NBR75 O-Rings?
1. Over 22 Years of Manufacturing Experience
Since 2002, we have specialized in precision rubber sealing components. Our 12,000 m² factory uses advanced production and inspection systems.
2. Full Customization Options
Sizes, colors, materials, packaging, and hardness are all customizable. OEM/ODM is fully supported.
3. One-Stop Sealing Solution Provider
We supply O-rings, Y seals, gaskets, RO membrane parts, and other rubber components to global brands.
4. Strict Quality Control
All products follow GB, ASTM, and NSF standards, ensuring consistency and safety.
5. Low MOQ & Fast Delivery
Small orders start at just 50 pcs, with a lead time of 12–18 days.
Xiamen Jinshun Sealing: NBR O-Ring Manufacturer in China
Xiamen Jinshun Sealing Technology Co., Ltd. is a professional manufacturer of rubber sealing products with 22 years of experience. Our product range covers O-rings, gaskets, oil seals, Y-rings, RO filtration components, and customized rubber solutions.
We serve industries including:
- Automotive electronics
- Food & beverage machinery
- Household appliances
- Medical devices
- Industrial fluid systems
With long-term partnerships across Europe, North America, Southeast Asia, and the Middle East, we are committed to delivering stable quality, competitive pricing, and professional technical support.
FAQ - NBR75 O-Rings
1. Can you customize NBR75 O-rings with my logo or specific size?
Yes. We provide full customization-size, hardness, packaging, and logo all can be made according to your requirements.
2. What standards do your NBR O-rings follow?
Our products comply with GB, ASTM, and NSF standards, ensuring consistent quality and excellent material performance.
3. Do you offer sample production?
Yes. Customized samples typically take 7–10 days to prepare.
4. What shipping options do you offer?
We ship worldwide via FOB, CIF, express (DHL/UPS/FEDEX), and more from Xiamen Port.
5. Can you help arrange accommodation during my factory visit?
Of course. We're happy to assist with hotel bookings and local arrangements.
Partner with Custom NBR O-Ring Manufacturer in China
Looking for a reliable NBR75 O-ring manufacturer with competitive pricing and fast delivery?
Tell us your size, drawing, or application-we'll send you a free quotation within 12 hours.
👉 Contact us today for OEM/ODM NBR75 O-ring solutions.
👉 Boost your product reliability with high-quality NBR75 seals from Jinshun!
