High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications

Product Details
Customization: Available
Material: Customized
Application: Multipurpose Use
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  • High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
  • High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
  • High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
  • High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
  • High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
  • High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
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  • Overview
  • Product Description
  • Specification
  • Application Photos
  • After Sales Service
  • Company Profile
  • FAQ
Overview

Basic Info.

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

Packaging & Delivery

Package Size
6.00cm * 6.00cm * 6.00cm
Package Gross Weight
2.000kg

Product Description

Product Description
High Quality Customized NBR O Ring Seal AS-019/20.35*1.78/AS-568 for Hydraulic Applications
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: Perfectly suited for automotive engines, fuel systems, and transmission systems.
2. Industrial Machinery: Ideal for hydraulic presses, pumps, and compressors.
3. Aerospace Field: Designed for use in fuel tanks and hydraulic actuators.
4. Plumbing and Water Systems: Reliable 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 tolerance is ±0.1 mm or ±0.004 inches for smaller sizes, ensuring high precision. The CSD tolerance also allows a specific variation around ±0.05 mm or ±0.002 inches for common sizes.
High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
Application Photos
High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
After Sales Service
Standard Warranty: 12 months
Timely Response and Technical Support: Our 24/7 customer service hotline ensures prompt assistance.
On-site Maintenance and Repair: If problems can't be resolved remotely, our after-sales team will dispatch expert technicians equipped with professional tools and spare parts directly to your location.
Regular Follow-up and Customer Feedback Collection: Post-problem resolution, 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 crucial input for continuously refining our products and services, thereby enhancing the overall customer experience.
Company Profile
High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
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 expertise. We are ISO 9001 and CE certified, exporting to over 50 countries, and offering dependable products and services driven by R&D innovation and rigorous quality control.
High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
Why Choose Us?
Other Products
OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions
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High Quality Customized NBR O Ring Seal as-019/20.35*1.78/as-568 for Hydraulic Applications
FAQ
Q: What's the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.
Q: Do you provide after-sales service overseas?
A: Certainly, we have established partnered service centers strategically located in key regions to ensure seamless support and accessibility.
Q: Is it possible to request a bucket size that is tailored to my specific requirements?
A: Absolutely! We specialize in providing tailored attachments that precisely meet your unique specifications and needs.
Q: What types of documentation do you provide for exporting your products?
A: We furnish a comprehensive export package that includes a Commercial Invoice, Packing List, Bill of Lading, Certificate of Conformity (COC), among others, to ensure smooth transit.
Q: What is the process for placing an order with your company?
A: Simply reach out to us via email or phone to receive a detailed quote, and then confirm your purchase with a Purchase Order (PO).

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