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Industrial Buna-N O-Ring | 3.915" ID | 8.881" OD | Aluminum 6061

Expert Overview

This industrial-grade Buna-N O-ring, crafted from premium Aluminum 6061, offers robust sealing capabilities. Its precise dimensions ensure a secure fit in demanding applications.

StandardASME B18
MaterialAluminum 6061
FinishZinc Plated
GradeN/A
Inside Diameter3.915"
Outside Diameter8.881"
Cross Section0.213"

Detailed Engineering Specifications

A proven choice for industrial professionals, this Buna-N O-ring is engineered for reliable sealing in a wide range of environments. With an inside diameter of 3.915 inches, an outside diameter of 8.881 inches, and a precise 0.213-inch cross-section, it provides a dependable seal against fluids and gases. The Buna-N (Nitrile) material offers excellent resistance to oils, fuels, and many hydraulic fluids, while the Aluminum 6061 housing ensures structural integrity and compatibility with its environment. This combination makes it ideal for general industrial sealing, automotive components, and machinery where moderate chemical resistance and durability are paramount.

🧊 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 and free from debris. 2. Carefully stretch the O-ring over the smaller component or into the groove, avoiding excessive force or sharp tools. 3. Once in place, verify the O-ring is seated evenly and without twists.

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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using excessive force during installation, potentially nicking or tearing the O-ring.Employ a lubricant compatible with the O-ring material and the application to ease installation. Use plastic or wooden tools if necessary.
Installing an O-ring with the wrong dimensions for the groove, leading to leaks or premature failure.Always verify the O-ring's inside diameter, outside diameter, and cross-section against the specified groove dimensions before installation.

Common Applications

  • General industrial sealing
  • Hydraulic systems
  • Automotive fluid containment

⚠️ Engineering Warnings

  • Not recommended for use with strong oxidizing agents or ketones.
  • Exposure to direct sunlight or ozone may degrade material over time.

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: General industrial sealing, Hydraulic systems, Automotive fluid containment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 3.915"CS = 0.213"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.