Advanced NBR O Ring as-019/20.35*1.78/as-568 with Tailored Size and Color Specifications

• 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

Stable Property Standard NBR O Ring for Diverse Applications AS-019/20.35*1.78/AS-568/NBR

Our Custom High Precision O Ring Seals are meticulously engineered with top-tier materials, prominently featuring NBR (Nitrile Butadiene Rubber) for this specific model. The precision craftsmanship ensures these O ring seals deliver superior performance and unwavering reliability. They are purposefully designed to satisfy the stringent demands of a multitude of applications. With precise dimensions of 20.35*1.78 aligned with the AS-019 standard and adherence to the AS-568 standard, these seals are also offered in the FKM-90 variant to accommodate various usage environments. The NBR material is renowned for its exceptional resistance to oil, fuel, and a spectrum of common chemicals, positioning it as a versatile solution for a broad 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: Ideal for automotive engines, fuel systems, and transmission systems

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

3. Aerospace Field: Suitable for fuel tanks and hydraulic actuators.
4. Plumbing and Water Systems: Optimal 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:

Ensures ID ±0.1 mm or ±0.004 inches for smaller sizes. The allowable variation for the CSD is approximately ±0.05 mm or ±0.002 inches for common sizes.

Application Photos

After Sales Service

Standard Warranty: 12 months

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

On-site Maintenance and Repair: For issues that cannot be resolved remotely, our skilled after-sales service team will deploy technicians with specialized tools and spare parts directly to your location.

Regular Follow-up and Customer Feedback Collection: After resolving any issues, we conduct regular follow-ups to ensure the product's optimal performance and customer satisfaction. We actively gather customer feedback and suggestions, which serve as vital inputs for enhancing our products and services, thereby elevating the overall customer experience.

Company Profile

Shanghai Dongzhiding Rubber and Plastic Technology Co., Ltd.

Shanghai Dongzhiding Rubber and Plastic Technology Co., Ltd. stands as a premier Chinese manufacturer of O-ring seal rubber products, boasting over 16 years of unparalleled expertise. With certifications including ISO 9001 and CE, we proudly export to over 50 countries, offering products and services grounded in rigorous R&D innovation and stringent quality control.

Why Choose Us?

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OEM/ODM capabilities
Competitive pricing & bulk discounts
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FAQ

Q: What's the lead time for orders?
A: Our standard models are prepared to ship within an efficient timeframe of 15–30 days. For those seeking customized solutions, please allow a bit more time, specifically 30–45 days, to ensure your unique specifications are met with precision.

Q: Do you provide after-sales service overseas?
A: Absolutely! We have partnered with top-tier service centers strategically located in key regions to ensure seamless support and assistance, wherever you are.

Q: Can I request a customized bucket size?
A: Certainly! We specialize in offering tailored attachments to meet your specific needs, ensuring a perfect fit for your requirements.

Q: What documents do you provide for export?
A: We provide a comprehensive export package that includes all necessary documentation such as Commercial Invoice, Packing List, Bill of Lading, COC, and more, ensuring a smooth and compliant export process.

Q: How do I place an order?
A: To place an order, simply reach out to us via email or phone to receive a detailed quote. Upon agreement, confirm your order by submitting a Purchase Order (PO).