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

Buna-N Aluminum O-Ring | 8.474" ID | Heavy Duty

Expert Overview

This industrial O-ring, crafted from durable Buna-N housed within a precision-machined Aluminum 6061 groove, ensures robust sealing in critical applications. Engineered for resilience and longevity under extreme pressure and temperature.

StandardASTM A106
MaterialAluminum 6061
FinishBlack Oxide
GradeN/A
Inside Diameter8.474"
Outside Diameter8.051"
Cross Section0.196"

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this industrial O-ring features a precise Inside Diameter of 8.474 inches, an Outside Diameter of 8.051 inches, and a Cross Section of 0.196 inches. The Buna-N material provides excellent resistance to oils, fuels, and hydraulic fluids, while the Aluminum 6061 housing offers superior corrosion resistance and structural integrity. This combination is ideal for demanding environments within hydraulic cylinders, pneumatic actuators, and robust fluid power systems where reliable, long-term sealing is paramount. The tight tolerances ensure a secure fit and optimal compression for leak-free operation.

🧊 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 O-ring are clean and free of debris. 2. Carefully place the O-ring into the designated groove, avoiding stretching or twisting. 3. Verify proper seating and uniform compression before engaging the mating component.

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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
O-ring is stretched or twisted during installation.Handle the O-ring with care and ensure it sits flat within the groove without tension.
Contamination of the O-ring or groove with dirt or debris.Thoroughly clean both the O-ring and the groove before assembly.

Common Applications

  • Hydraulic Cylinder Seals
  • Pneumatic Actuator Seals
  • Fluid Power Systems
  • Automotive Sealing Applications

⚠️ Engineering Warnings

  • Avoid exposure to high concentrations of strong acids or oxidizing agents.
  • Ensure compatibility with the specific fluid media and operating temperature range.

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 Cylinder Seals, Pneumatic Actuator Seals, Fluid Power Systems, Automotive Sealing Applications.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 8.474"CS = 0.196"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.