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

Industrial O-Ring, Buna-N | 1.375" ID | Aluminum 6061

Expert Overview

Engineered for superior sealing performance, this industrial O-ring features durable Buna-N construction and is housed within a precise Aluminum 6061 casing. Delivers reliable sealing across a wide range of temperatures and pressures.

StandardASTM A106
MaterialAluminum 6061
FinishBlack Oxide
GradeN/A
Inside Diameter1.375"
Outside Diameter2.179"
Cross Section0.203"

Detailed Engineering Specifications

Specified by design engineers worldwide, this Buna-N O-ring, encased in Aluminum 6061, offers exceptional resilience and durability. With an Inside Diameter of 1.375 inches, an Outside Diameter of 2.179 inches, and a Cross Section of 0.203 inches, it's engineered for precise fitment. The Buna-N material provides excellent resistance to oils, fuels, and hydraulic fluids, while the Aluminum 6061 casing ensures structural integrity and corrosion resistance in demanding applications such as fluid power systems, automotive components, and general industrial machinery.

🧊 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 and O-ring are clean and free of debris. 2. Carefully install the O-ring into the designated groove, avoiding stretching or twisting. 3. Apply a light coat of compatible lubricant if necessary to facilitate installation and prevent damage.

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
Over-stretching the O-ring during installation.Install the O-ring without excessive tension, allowing it to naturally seat within the groove.
Using incompatible lubricants that degrade the Buna-N material.Consult compatibility charts to select a lubricant specifically designed for Buna-N and the operating environment.

Common Applications

  • Hydraulic and pneumatic cylinders
  • Fluid power systems
  • Automotive fuel and oil systems

⚠️ Engineering Warnings

  • Not suitable for exposure to ozone, UV, or weathering.
  • Avoid use in applications with 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 and pneumatic cylinders, Fluid power systems, Automotive fuel and oil systems.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 1.375"CS = 0.203"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.