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

Buna-N Aluminum O-Ring 1.266" ID x 4.559" OD

Expert Overview

This industrial O-ring, crafted with a robust Buna-N sealing element and an Aluminum 6061 housing, provides exceptional sealing performance in demanding applications. Its precise dimensions ensure a reliable and leak-free seal.

StandardASTM A106
MaterialAluminum 6061
FinishBlack Oxide
GradeN/A
Inside Diameter1.266"
Outside Diameter4.559"
Cross Section0.230"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this industrial O-ring features a Buna-N sealing element integrated within a precision-machined Aluminum 6061 housing. The material combination offers excellent resistance to oils, fuels, and many hydraulic fluids, making it ideal for a wide range of industrial environments. With an inside diameter of 1.266 inches, an outside diameter of 4.559 inches, and a cross-section of 0.230 inches, this O-ring is engineered for reliable static and dynamic sealing applications, ensuring operational 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. Inspect the groove and mating surfaces for cleanliness and absence of damage. 2. Carefully position the O-ring within the designated groove, avoiding stretching or twisting. 3. Ensure the O-ring is seated properly and uniformly before assembling mating components.

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
Overtightening during assembly, which can cause extrusion or permanent deformation of the O-ring.Follow specified torque values for fasteners and ensure mating components are aligned correctly.
Using incompatible lubricants or cleaning agents that can degrade the Buna-N material.Consult the material compatibility chart for Buna-N and use only approved lubricants and cleaning solutions.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Fluid power applications

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications above 250°F (121°C).
  • Avoid exposure to ozone, strong acids, and polar solvents, which can degrade Buna-N.

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, Fluid power applications.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 1.266"CS = 0.230"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.