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

Buna-N Aluminum O-Ring | 6.733" ID x 6.538" OD

Expert Overview

This specialized O-ring features a Buna-N sealing element integrated with a robust Aluminum 6061 retainer. Engineered for superior sealing in challenging industrial applications, it ensures reliable performance under pressure.

StandardISO 9001
MaterialAluminum 6061
FinishZinc Plated
GradeN/A
Inside Diameter6.733"
Outside Diameter6.538"
Cross Section0.091"

Detailed Engineering Specifications

Designed for demanding industrial environments, this O-ring assembly utilizes a Buna-N elastomer for excellent resistance to oils, fuels, and hydraulic fluids. The integrated Aluminum 6061 retainer provides structural integrity and dimensional stability, preventing extrusion and deformation. With an inside diameter of 6.733 inches, an outside diameter of 6.538 inches, and a precise 0.091-inch cross-section, it offers a tight and secure seal in critical fluid power and hydraulic systems.

🧊 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, free of debris, and within specified tolerances. 2. Carefully position the O-ring assembly within the groove, avoiding excessive stretching or twisting. 3. Apply a thin, compatible lubricant to facilitate assembly and prevent damage to the seal.

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
Using excessive force during installation, leading to tearing or nicking the Buna-N element.Employ gentle, even pressure and utilize appropriate installation tools designed for O-rings.
Improper groove preparation, such as sharp edges or residual contamination.Thoroughly inspect and clean the groove before installation, ensuring all surfaces are smooth and free of defects.

Common Applications

  • Hydraulic cylinders
  • Pneumatic systems
  • Fluid power manifold blocks

⚠️ Engineering Warnings

  • Not suitable for applications involving strong oxidizing agents or high-temperature steam.
  • Verify chemical compatibility of Buna-N with the specific fluid media before use.

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 cylinders, Pneumatic systems, Fluid power manifold blocks.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.733"CS = 0.091"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.