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

Buna-N O-Ring | 6.918" ID x 2.987" OD | Aluminum 6061 Seal

Expert Overview

This industrial O-ring, manufactured from robust Aluminum 6061, provides exceptional sealing in critical applications. Its precise dimensions ensure a leak-proof fit, offering reliability and longevity.

StandardASTM A106
MaterialAluminum 6061
FinishZinc Plated
GradeN/A
Inside Diameter6.918"
Outside Diameter2.987"
Cross Section0.245"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this Buna-N O-ring exhibits an inside diameter of 6.918", an outside diameter of 2.987", and a cross-section of 0.245". Constructed from Aluminum 6061, this material is chosen for its excellent corrosion resistance, moderate strength, and machinability, making it suitable for a wide range of static and dynamic sealing applications where chemical compatibility with petroleum oils, hydraulic fluids, and water is paramount. Its precise dimensional tolerances guarantee superior sealing integrity.

🧊 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 sealing groove is clean and free from debris. 2. Carefully stretch the O-ring over the component, avoiding excessive force or sharp tools. 3. Gently seat the O-ring into the groove, confirming an even distribution without twists.

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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using sharp tools during installation, leading to nicks or cuts in the O-ring.Employ plastic or rubber installation tools, or lubricate the O-ring and groove to facilitate smooth insertion.
Incorrect O-ring size, resulting in either extrusion or insufficient sealing pressure.Verify the O-ring dimensions (ID, OD, and cross-section) against the groove specifications before installation.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Automotive seals

⚠️ Engineering Warnings

  • Not suitable for high temperatures exceeding 100°C (212°F).
  • Avoid exposure to ozone, strong acids, or polar solvents.

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, Pneumatic equipment, Automotive seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.918"CS = 0.245"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.