BEST SELLER

Industrial O-Ring Seals

SKU: HJ-OR-3500 | Category: O-Rings & Seals

Precision-engineered industrial O-ring seals manufactured from premium elastomeric compounds. Designed for reliable static and dynamic sealing in hydraulic systems, pneumatic circuits, automotive assemblies, and critical process equipment operating at temperatures from –60°C to +300°C.

  • FDA & NSF Certified
  • 3,500+ Standard Profiles
  • 5–7 Day Lead Time
  • MOQ from 100 pcs
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Key Features

Engineered for Performance

Our vertically integrated facility combines precision engineering with scalable production capacity, ensuring consistent quality from prototype to mass production.

  • Superior Chemical Resistance

    Withstands exposure to oils, fuels, solvents, acids, and alkaline solutions without degradation or swelling, ensuring long service life in harsh chemical environments.

  • Extreme Temperature Range

    Operates reliably from –60°C to +300°C depending on compound selection, maintaining elasticity and sealing force across wide thermal cycling conditions.

  • High-Pressure Sealing

    Engineered to withstand pressures up to 5,000 PSI with backup ring configurations, delivering leak-free performance in hydraulic and pneumatic systems.

  • Zero Defect Standard

    100% visual inspection with automated dimensional verification. AQL 0.65 standard ensures every batch meets or exceeds your quality requirements.

  • Global Standards Compliance

    Manufactured in compliance with AS568, ISO 3601, JIS B2401, and DIN 3771 standards. Compatible with metric and imperial groove dimensions.

  • Rapid Global Delivery

    Standard sizes ship within 48 hours from our Dongguan facility. Custom orders delivered in 5–7 business days with DDP shipping available worldwide.

Technical Data

Specifications & Materials

Comprehensive technical specifications to help you select the right O-ring for your application. Custom compounds available on request.

Product Specifications
Inner Diameter Range 1.0 mm – 1,500 mm
Tolerances ID ±0.08 mm, CS ±0.05 mm
Cross-Section Range 0.5 mm – 15.0 mm
Surface Finish N5 – N8 (Ra 0.4 – 3.2 μm)
Temperature Range –60°C to +300°C
Color Options Black, Brown, Red, Green, Custom
Pressure Rating Up to 5,000 PSI (with backup)
Standards AS568, ISO 3601, JIS B2401, DIN 3771
Hardness Range 30 – 90 Shore A
Shelf Life Up to 10 years (proper storage)

Available Compounds

  • NBR (Nitrile)

    Most widely used general-purpose elastomer. Excellent resistance to petroleum-based oils and fuels. Ideal for hydraulic and pneumatic applications.

    –40°C to +120°C Oil Resistant Cost-Effective
  • FKM (Viton®)

    Premium fluoroelastomer for extreme chemical and temperature resistance. Handles aggressive fuels, acids, and solvents with ease.

    –20°C to +200°C Chemical Resistant High Temp
  • Silicone (VMQ)

    Widest operating temperature range. FDA-compliant grades available for food and medical applications. Excellent ozone and UV resistance.

    –40°C to +120°C Oil Resistant Cost-Effective
  • NBR (Nitrile)

    Most widely used general-purpose elastomer. Excellent resistance to petroleum-based oils and fuels. Ideal for hydraulic and pneumatic applications.

    –40°C to +120°C Oil Resistant Cost-Effective
  • FKM (Viton®)

    Premium fluoroelastomer for extreme chemical and temperature resistance. Handles aggressive fuels, acids, and solvents with ease.

    –20°C to +200°C Chemical Resistant High Temp
  • Silicone (VMQ)

    Widest operating temperature range. FDA-compliant grades available for food and medical applications. Excellent ozone and UV resistance.

    –40°C to +120°C Oil Resistant Cost-Effective

Comprehensive Inventory

With over 3,500 standard profiles in stock and the capability to manufacture custom sizes, we have the right O-ring for virtually any application.

  • 3,500+

    Standard Profiles

  • 1mm

    Minimum ID

Where It's Used

Application Scenarios

Our industrial O-rings deliver reliable sealing performance across diverse industries and critical systems worldwide.

  • Automotive

    Engine seals, fuel injector O-rings, transmission seals, A/C system sealing, and brake system components for OEM and aftermarket.

  • Aerospace

    Flight control hydraulics, fuel systems, landing gear assemblies, and cabin pressurization systems requiring AS568 and AMS.

  • Oil & Gas

    Downhole tool seals, BOP stack seals, pipeline valve seals, and subsea equipment operating in extreme pressure and H₂S.

  • Medical & Pharma

    FDA-compliant seals for infusion pumps, diagnostic equipment, pharmaceutical processing, and USP Class VI biocompatible.

  • Automotive

    Engine seals, fuel injector O-rings, transmission seals, A/C system sealing, and brake system components for OEM and aftermarket.

  • Aerospace

    Flight control hydraulics, fuel systems, landing gear assemblies, and cabin pressurization systems requiring AS568 and AMS.

  • Oil & Gas

    Downhole tool seals, BOP stack seals, pipeline valve seals, and subsea equipment operating in extreme pressure and H₂S.

  • Medical & Pharma

    FDA-compliant seals for infusion pumps, diagnostic equipment, pharmaceutical processing, and USP Class VI biocompatible.

OEM & Custom

Custom O-Ring Solutions

Can't find the right size or material? Our engineering team will design and manufacture custom O-rings tailored to your exact specifications.

  • Share Your Requirements

    Provide drawings, specs, or application details. Our engineers will review and recommend the optimal solution.

  • Engineering & Prototyping

    We develop material formulations and produce prototype samples for your testing and approval within 3–5 days.

  • Tooling & Production

    Precision CNC-machined molds and high-volume production with in-line QC. Typical lead time: 5–7 business days.

  • Delivery & Support

    100% inspected, packed, and shipped globally with full traceability. Ongoing technical support included.

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