High-Performance O Ring Seal as-118/21.89*2.62/as-568 Durable NBR Seal with Custom Size Options

• Customization: Available
• Material: Customized
• Application: Multipurpose Use
• Model NO.: AS-118/21.89*2.62/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

High-Performance O Ring Seal AS-118/21.89*2.62/AS-568 Durable NBR Seal with Custom Size Options

Our Custom High Precision O Ring Seals are crafted with top-notch quality materials, specifically featuring NBR (Nitrile Butadiene Rubber) for this particular model. The precision in manufacturing these O ring seals is of the highest standard, ensuring excellent performance and reliability. They are designed to meet the exacting requirements of diverse applications. With specific dimensions of 21.89*2.62 as per the AS-118 standard and conforming to the AS-568 standard, these seals are also available in FKM-90 variant for different usage scenarios. The NBR material offers good resistance to oil, fuel, and other common chemicals, making it a versatile choice for a wide range of industrial and mechanical settings.

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: Expertly designed for automotive engines, fuel systems, and transmission systems, ensuring peak performance and reliability.

2. Industrial Machinery: Perfectly suited for hydraulic presses, pumps, and compressors, ensuring seamless and efficient operation.

3. Aerospace Field: Crucial for fuel tanks and hydraulic actuators, providing unmatched safety and dependability.
4. Plumbing and Water Systems: Ideal for faucets, valves, and pipe joints, offering a dependable and durable seal.

Key Configurations

Material:

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

AS-112
AS-568
Precision Level:

Our products are distinguished by an exceptional precision level, featuring an ID tolerance of ±0.1 mm or ±0.004 inches for smaller sizes. The CSD also maintains a specific allowable variation, roughly ±0.05 mm or ±0.002 inches for standard sizes, ensuring a flawless fit and optimal functionality.

Application Photos

After Sales Service

Standard Warranty: Experience peace of mind with our extensive 12-month warranty, highlighting our unwavering dedication to quality.

Timely Response and Technical Support: We pride ourselves on offering a 24/7 customer service hotline, ensuring our dedicated team is always available to address any inquiries or concerns promptly.

On-site Maintenance and Repair: For issues that cannot be addressed remotely, our highly skilled after-sales service team is ready to dispatch technicians equipped with professional tools and spare parts directly to your location, ensuring swift and effective resolutions.

Regular Follow-up and Customer Feedback Collection: Our commitment to excellence extends beyond mere problem resolution. We conduct regular follow-ups to ensure your product is functioning at its best and that you are completely satisfied with our service. We actively collect customer feedback and suggestions, which serve as invaluable references for the continuous improvement of our products and services, enhancing your overall experience.

Company Profile

Shanghai Dongzhiding Rubber and Plastic Technology Co., Ltd.

Shanghai Dongzhiding Rubber and Plastic Technology Co., Ltd. is a leading Chinese manufacturer specializing in O-ring seal rubber products, with over 16 years of industry expertise. Proudly holding ISO 9001 and CE certifications, we export to more than 50 countries, delivering reliable products and services driven by R&D innovation and stringent quality control.

Why Choose Us?

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FAQ

Q: What's the lead time for orders?
A: Our standard models are on standby, ready to ship within an exceptional timeframe of 15–30 days. For those with a desire for custom-tailored solutions, we provide a dedicated delivery schedule of 30–45 days, meticulously crafted to meet your exact specifications.

Q: Do you provide after-sales service overseas?
A: Absolutely! We are delighted to extend our outstanding after-sales services worldwide, facilitated by our strategically located partnered service centers in pivotal international areas, ensuring unparalleled support no matter where you're situated.

Q: Can I request a customized bucket size?
A: Certainly! We are experts in delivering custom attachments that are meticulously designed to align seamlessly with your specific needs, guaranteeing an impeccable fit and exceptional functionality.

Q: What documents do you provide for export?
A: We furnish a thorough export package, encompassing vital documents such as a Commercial Invoice, Packing List, Bill of Lading, Certificate of Compliance (COC), and much more, ensuring smooth and effortless international dealings.

Q: How do I place an order?
A: Contact us via email or phone to obtain a tailored quote. Once you're satisfied, confirm your order with a Purchase Order (PO), and we will execute the process with unmatched precision and speed.