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Industrial O-Ring, Buna-N, 3.325" OD, Aluminum 6061

Expert Overview

This industrial O-ring features a robust Buna-N elastomer for excellent chemical resistance and durability. Engineered with an Aluminum 6061 core, it offers superior structural integrity and thermal conductivity, ensuring reliable sealing in demanding applications.

StandardASME B18
MaterialAluminum 6061
FinishPassivated
GradeN/A
Inside Diameter0.280"
Outside Diameter3.325"
Cross Section0.268"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this Buna-N O-ring exhibits an inside diameter of 0.280", an outside diameter of 3.325", and a cross-section of 0.268". The core material, Aluminum 6061, provides excellent machinability, corrosion resistance, and a good strength-to-weight ratio. Buna-N (Nitrile Butadiene Rubber) offers broad resistance to oils, fuels, and many hydraulic fluids, making this O-ring ideal for static and dynamic sealing in automotive, aerospace, and industrial machinery where moderate temperatures and chemical exposure are prevalent.

🧊 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 mating grooves and surfaces are clean and free from debris. 2. Carefully position the O-ring within the designated groove, avoiding stretching or twisting. 3. Apply a thin, compatible lubricant if necessary to facilitate assembly and prevent damage during initial compression.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

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
Overstretching the O-ring during installation, leading to premature failure and leakage.Install the O-ring without excessive tension. If the groove is tight, consider a slightly larger diameter O-ring or a lubricant.
Using incompatible lubricants or cleaning agents that degrade the Buna-N material.Consult the material compatibility chart for Buna-N and select lubricants specifically approved for this elastomer.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Fuel and oil seals
  • Automotive powertrain components

⚠️ Engineering Warnings

  • Not suitable for applications involving strong oxidizing agents or high temperatures exceeding the operating limits of Buna-N.
  • Verify chemical compatibility for specific fluids and operating conditions before deployment.

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, Pneumatic cylinders, Fuel and oil seals, Automotive powertrain components.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 0.280"CS = 0.268"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.