Home > Sealing > Industrial O-Ring, Buna-N

Buna-N O-Ring | 1.766" ID x 6.406" OD | Aluminum 6061

Expert Overview

Engineered for reliable sealing, this Buna-N O-ring offers excellent resistance to oils and fuels. Precision manufactured to stringent tolerances for demanding industrial environments.

StandardASTM A106
MaterialAluminum 6061
FinishZinc Plated
GradeN/A
Inside Diameter1.766"
Outside Diameter6.406"
Cross Section0.109"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this industrial O-ring features a precise Inside Diameter of 1.766 inches and an Outside Diameter of 6.406 inches, with a consistent 0.109-inch cross-section. Constructed from high-grade Buna-N (Nitrile), it exhibits superior resistance to petroleum-based oils, fuels, and hydraulic fluids, making it suitable for a wide range of dynamic and static sealing applications in automotive, aerospace, and manufacturing. The Buna-N material offers a broad operating temperature range and excellent abrasion resistance.

🧊 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 sealing groove is clean and free of debris. 2. Carefully lubricate the O-ring with a compatible lubricant. 3. Install the O-ring into the groove, avoiding twisting or stretching.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASTM A106

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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using the wrong lubricant, leading to material degradation.Consult compatibility charts and use a lubricant specifically approved for Buna-N.
Over-stretching the O-ring during installation, causing permanent deformation.Install the O-ring without excessive force, ensuring it seats properly in the groove.

Common Applications

  • Hydraulic systems
  • Fuel systems
  • Pneumatic systems
  • Automotive sealing
  • Industrial machinery

⚠️ Engineering Warnings

  • Not suitable for exposure to ozone, UV, or weathering.
  • Avoid use with polar solvents such as ketones and esters.

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 Aluminum 6061.

Q: What are the main applications?

A: Hydraulic systems, Fuel systems, Pneumatic systems, Automotive sealing, Industrial machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 1.766"CS = 0.109"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.