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Buna-N O-Ring - 6.352" ID | Industrial Sealing

Expert Overview

This industrial-grade Buna-N O-ring offers exceptional sealing performance in a wide range of demanding environments. Precisely manufactured to meet stringent industrial standards, it ensures reliable containment and fluid retention.

StandardDIN 933
MaterialPolycarbonate
FinishBlack Oxide
GradeN/A
Inside Diameter6.352"
Outside Diameter3.003"
Cross Section0.117"

Detailed Engineering Specifications

A proven choice for industrial professionals, this Buna-N O-ring features an inside diameter of 6.352 inches, an outside diameter of 3.003 inches, and a 0.117-inch cross-section. Fabricated from robust Polycarbonate, it exhibits excellent resistance to oils, fuels, hydraulic fluids, and many common industrial chemicals, making it ideal for applications requiring durable and reliable sealing against aggressive media. Its Shore A hardness of 70 provides a balance of flexibility and compression set resistance, ensuring long-term sealing integrity.

🧊 Download 3D CAD Model (.STEP)

Verified Global OEM Partners

This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.

TrelleborgEst. 1905
Sweden🇸🇪
"Engineered polymer solutions."
Market Rank
🏆 #1 Engineered Polymers
Industry Approvals
🚀 Aerospace & Subsea Approved
Warranty & Support
🛡️ High-Performance Guarantee
Green Manufacturing
🌱 Blue Dimension ESG
Certified:ISO 9001, ISO 14001
GarlockEst. 1887
USA🇺🇸
"High-performance fluid sealing."
Market Rank
🏆 Premium Fluid Sealing Leader
Industry Approvals
🚀 Nuclear & Pharma Approved
Warranty & Support
🛡️ Zero-Leak Guarantee
Green Manufacturing
🌱 Sustainable Materials
Certified:ISO 9001, FDA, NSF
FreudenbergEst. 1849
Germany🇩🇪
"Global sealing technologies."
Market Rank
🏆 Top Global Sealing Tech
Industry Approvals
🚀 Audi & Mercedes OEM
Warranty & Support
🛡️ Global Engineering Support
Green Manufacturing
🌱 Climate Neutral 2045
Certified:IATF 16949, ISO 14001

Certifications & Compliance

RoHS Compliant:Yes
REACH Compliant:Yes
Material Traceability:Available on Request
DFARS Compliant:N/A

Installation Procedure

1. Ensure the groove and mating surfaces are clean and free from debris. 2. Carefully lubricate the O-ring with a compatible lubricant to prevent damage during installation. 3. Install the O-ring into the designated groove, ensuring it is seated properly without twisting.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

Mechanical Properties

Tensile StrengthStandard Commercial Spec
Yield StrengthStandard Commercial Spec
HardnessVaries by specific batch

Temperature & Environment Rating

Min Operating Temp
-20°F (-29°C)
Max Continuous Temp
400°F (204°C)
Thermal Expansion
Typical for Material Class

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
StandardVaries by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using the wrong size O-ring, leading to leaks or premature failure.Always verify the required O-ring dimensions against the groove specifications before selection.
Over-stretching or twisting the O-ring during installation, causing damage and reducing sealing effectiveness.Install the O-ring gently, ensuring it sits flat within the groove without excessive tension.
Using incompatible lubricants that degrade the Buna-N material.Consult a chemical compatibility chart for lubricants suitable for Buna-N and the specific application fluids.

Common Applications

  • Hydraulic systems
  • Pneumatic systems
  • Fuel lines
  • Oil seals
  • General industrial machinery

⚠️ Engineering Warnings

  • Not suitable for applications involving strong acids, ketones, esters, or highly polar solvents.
  • Operating temperature range for Buna-N is typically -34°C to +121°C (-30°F to +250°F); consult specific material data sheets for precise limits.

Alternative Products to Consider

Premium Sealing equivalentHigher corrosion resistance (316 SS)
Economy Sealing optionLower cost for non-critical indoor applications

Frequently Asked Questions

Q: What is the Industrial O-Ring, Buna-N made from?

A: This Industrial O-Ring, Buna-N is manufactured from Polycarbonate.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic systems, Fuel lines, Oil seals, General industrial machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.352"CS = 0.117"SPECIFICATIONSSize: -214

Torque Specifications

⚡ UNIT CONVERTER

Conversion factor: 1 ft-lb ≈ 1.356 Nm

Verified Compatibility

StatusMating ComponentStandardTorque SpecEngineering Notes
No verified compatibility data found for this component.