Durable NBR O Ring Seal as-019/20.35*1.78/as-568 with Customized Size and Color Options

• Customization: Available
• Material: Customized
• Application: Multipurpose Use
• Model NO.: AS-019/20.35*1.78/AS-568
• Type: Stationary Seal
• Performance: High Pressure
• Shape: Standard and Customized
• Standard: Standard
• Color: Customized Color
• OEM/ODM: Yes
• Size: Customized Size
• Operational Temperature Range: -40~+100ºC
• Transport Package: Standard Packing
• Specification: Customized
• Trademark: DZD
• Origin: China
• Package Size: 6.00cm * 6.00cm * 6.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

Durable NBR O Ring Seal AS-019/20.35*1.78/AS-568 with Customized Size and Color Options

Our Custom High Precision O Ring Seals are meticulously crafted using premium-grade materials, prominently featuring NBR (Nitrile Butadiene Rubber) for this distinct model. The precision involved in manufacturing these O ring seals is unparalleled, ensuring supreme performance and unwavering reliability. They are engineered to meet the stringent demands of diverse applications. With precise dimensions of 20.35*1.78 according to the AS-019 standard and adhering to the AS-568 standard, these seals are also available in the FKM-90 variant for varied usage scenarios. The NBR material provides exceptional resistance to oil, fuel, and numerous common chemicals, making it an adaptable choice for a vast array of industrial and mechanical applications.

Specification

Material	Nitrile Butadiene Rubber (NBR)	Fluororubber (FKM)
Color	Red, Black, Blue, etc. Customized
Size	Standard&Customized
Density	Typically 0.95-1.25 g/cm³, depending on filler content (common grades: ~1.0-1.1 g/cm³).	Usually 1.8-2.0 g/cm³  (high density due to fluorine content).
Hardness	Typically 40 - 90 Shore A, with common industrial grades at 60 - 80 Shore A	Usually 50 - 90 Shore A, with high - performance grades often at 70 - 85 Shore A.
Temperature	-40°C to +100°C (-40°F to +212°F)	-20°C to +200°C (-4°F to +392°F)
Tolerance	Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm	Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm
Advantages	1. Excellent resistance to mineral oils, fuels, and hydraulic fluids. 2.Good mechanical strength and abrasion resistance. 3.Cost-effective and widely available. 4.Versatile for moderate temperature applications (-40°C to +120°C).	1.Exceptional resistance to high temperatures (+200°C, up to +230°C for premium grades). 2.Outstanding chemical resistance to acids, solvents, and fuels. 3.High durability in aggressive environments (e.g., chemicals, aerospace). 4.Long service life in harsh conditions.
Application	Hydraulic systems; Fuel systems; Automotive engines; Oil pumps; Other general industrial; equipment with oil-based media.	High-temperature environments; Automotive engines; Turbochargers, gaskets; Chemical processing plants; Aerospace seals; Applications of aggressive chemicals or fuels.
Storage& Maintenance	1. Regular Inspection: Periodically check the O-ring for signs of wear, such as abrasion on the surface, and aging, which may present as cracking, hardening, or discoloration.  2. Timely Replacement: Replace O-rings immediately if they are damaged, deformed, or show signs of aging. A defective O-ring can no longer ensure proper sealing performance. 3. Exposure Avoidance: Prevent O-rings from being exposed to harsh environments for extended periods.

Applications

1. Automotive Industry: Perfect for automotive engines, fuel systems, and transmission systems

2. Industrial Machinery: Ideal for hydraulic presses, pumps, and compressors

3. Aerospace Field: Suitable for fuel tanks and hydraulic actuators.
4. Plumbing and Water Systems: Designed for faucets, valves, and pipe joints

Key Configurations

Material:

NBR (Nitrile Butadiene Rubber)
FKM-90 (Fluorocarbon Rubber)
Standards Compliance:

AS-112
AS-568
Precision Level:

ID accuracy is maintained at ±0.1 mm or ±0.004 inches for smaller sizes. Common sizes see a CSD tolerance around ±0.05 mm or ±0.002 inches, ensuring precise fit and function.

Application Photos

After Sales Service

Standard Warranty: 12 months of reliable coverage

Timely Response and Technical Support: Our dedicated 24/7 customer service hotline ensures prompt assistance.

On-site Maintenance and Repair: For irreparable remote issues, our after-sales service team promptly dispatches expert technicians with the necessary tools and spare parts to your location.

Regular Follow-up and Customer Feedback Collection: Post-resolution, we regularly follow up to confirm product functionality and customer satisfaction. We actively gather feedback and suggestions to continually enhance our products and services, aiming to elevate the overall customer experience.

Company Profile

Shanghai Dongzhiding Rubber and Plastic Technology Co., Ltd.

Shanghai Dongzhiding Rubber and Plastic Technology Co., Ltd. stands at the forefront of Chinese O-ring seal rubber seal manufacturing. Backed by over 16 years of expertise, we hold ISO 9001 and CE certifications and export to over 50 countries. Our offerings are renowned for their reliability, supported by R&D innovation and rigorous quality control.

Why Choose Us?

Other Products

OEM/ODM capabilities tailored to your needs
Competitive pricing with attractive bulk discounts
Experience fast shipping and seamless customs clearance support
Comprehensive turnkey project solutions

HNBY RUBBER SEAL

SIL SILICON RUBBER SEAL

EPDM RUBBER SEAL

METAL RUBBER SEAL

FAQ

Q: What's the lead time for orders?
A: Standard models are dispatched within 15–30 days, while customized units take 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, indeed! We proudly collaborate with dedicated partnered service centers strategically located in key regions worldwide to ensure seamless support and satisfaction for our global customers.

Q: Can I request a customized bucket size?
A: Absolutely! We are delighted to offer tailored attachments to meet your exact specifications, ensuring that every detail aligns perfectly with your unique needs.

Q: What documents do you provide for export?
A: We provide a comprehensive full export package, including essential documents such as the Commercial Invoice, Packing List, Bill of Lading, Certificate of Conformity (COC), and more, ensuring a smooth and compliant export process.

Q: How do I place an order?
A: To place an order, simply contact us via email or phone to receive a tailored quote. Once satisfied, you can confirm your order by submitting a Purchase Order (PO), and we will take care of the rest.