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

Industrial Buna-N O-Ring | 4.346" ID x 8.912" OD | Aluminum 6061

Expert Overview

This industrial O-ring, crafted from resilient Buna-N, ensures superior sealing performance. Precisely machined from Aluminum 6061, it offers exceptional durability for critical applications.

StandardISO 9001
MaterialAluminum 6061
FinishZinc Plated
GradeN/A
Inside Diameter4.346"
Outside Diameter8.912"
Cross Section0.103"

Detailed Engineering Specifications

Built to exacting engineering tolerances, this Buna-N O-ring boasts an Inside Diameter of 4.346 inches, an Outside Diameter of 8.912 inches, and a cross-section of 0.103 inches. The core Buna-N material provides excellent resistance to oils, fuels, and hydraulic fluids, making it ideal for dynamic and static sealing applications within a moderate temperature range. The Aluminum 6061 construction offers inherent corrosion resistance and good machinability, ensuring a precise fit and reliable seal integrity in a variety of industrial fluid power systems, automotive components, and general machinery.

🧊 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 groove is clean, dry, and free of burrs or foreign debris. 2. Carefully lubricate the O-ring and groove with a compatible lubricant to prevent damage during installation. 3. Gently install the O-ring into the groove, avoiding stretching or twisting, and confirm it sits flush within the groove.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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
Overstretching the O-ring during installation.Use a compatible lubricant and ensure the O-ring is installed without undue tension or twisting, allowing it to sit naturally in the groove.
Installing into a dirty or damaged groove.Thoroughly inspect and clean the mating groove for any debris, burrs, or sharp edges that could compromise the seal.

Common Applications

  • Hydraulic and pneumatic cylinders
  • Fuel and oil systems
  • Pumps and valves

⚠️ Engineering Warnings

  • Buna-N is not suitable for high-temperature applications or exposure to strong oxidizing agents.
  • Always verify material compatibility with the specific fluid media and operating conditions.

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 and pneumatic cylinders, Fuel and oil systems, Pumps and valves.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 4.346"CS = 0.103"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.