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Buna-N O-Ring, 3.531" ID x 6.562" OD, Aluminum 6061 Compatible

Expert Overview

This industrial-grade Buna-N O-ring is engineered for robust sealing performance. Constructed with a material optimized for Aluminum 6061 compatibility, it ensures a reliable barrier against fluids and gasses in critical applications.

StandardDIN 933
MaterialAluminum 6061
FinishBlack Oxide
GradeN/A
Inside Diameter3.531"
Outside Diameter6.562"
Cross Section0.238"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this Buna-N O-ring boasts an Inside Diameter of 3.531 inches, an Outside Diameter of 6.562 inches, and a precise Cross Section of 0.238 inches. Formulated for excellent resistance to petroleum-based oils, hydraulic fluids, and water, this NBR (Nitrile Butadiene Rubber) compound exhibits good mechanical properties and a wide operating temperature range, making it ideal for sealing in systems utilizing Aluminum 6061 components where compatibility and longevity 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. Thoroughly clean both mating surfaces and the O-ring groove. 2. Lightly lubricate the O-ring with a compatible lubricant. 3. Carefully install the O-ring into its groove, ensuring it is not twisted.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

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
Using excessive force during installation, leading to O-ring extrusion or damage.Employ gentle, consistent pressure and ensure the O-ring is properly seated before assembly.
Incorrect O-ring material selection for the fluid or operating temperature.Verify the chemical and temperature compatibility of Buna-N with the specific application environment.

Common Applications

  • Hydraulic systems with Aluminum 6061 components
  • Fluid power transmission
  • Automotive and aerospace sealing

⚠️ Engineering Warnings

  • Not recommended for use with ozone, strong acids, or polar solvents.
  • Ensure proper storage to prevent degradation from UV light and high temperatures.

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 with Aluminum 6061 components, Fluid power transmission, Automotive and aerospace sealing.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 3.531"CS = 0.238"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.