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

Buna-N O-Ring | 3.397" ID x 4.135" OD x 0.210" CS | Aluminum 6061

Expert Overview

This industrial Buna-N O-ring, crafted from durable Aluminum 6061, provides reliable sealing in high-pressure applications. Its precise dimensions ensure a secure fit and leak-proof performance.

StandardASME B18
MaterialAluminum 6061
FinishZinc Plated
GradeN/A
Inside Diameter3.397"
Outside Diameter4.135"
Cross Section0.210"

Detailed Engineering Specifications

Designed for demanding industrial environments, this Buna-N O-ring boasts a precise Inside Diameter of 3.397 inches, an Outside Diameter of 4.135 inches, and a Cross Section of 0.210 inches. The Aluminum 6061 housing offers excellent corrosion resistance and structural integrity, making it suitable for applications requiring compatibility with hydrocarbons, oils, and hydraulic fluids. Its robust construction ensures consistent sealing performance under varying temperatures and pressures, vital for hydraulic cylinders, pneumatic actuators, and fluid power 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 surfaces are clean, dry, and free of debris. 2. Carefully place the O-ring into the designated groove, ensuring it is seated evenly. 3. Apply light lubrication compatible with Buna-N if necessary for easier assembly and to prevent tearing.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

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 incorrect O-ring size.Always verify the specified O-ring dimensions against the groove dimensions to ensure a proper seal.
Installing the O-ring with sharp tools.Use only non-metallic tools or your fingers to install the O-ring to prevent nicks or cuts in the material.

Common Applications

  • Hydraulic systems
  • Pneumatic systems
  • Fluid power transmission

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents or ketones.
  • Operating temperature limits for Buna-N should be observed to maintain seal integrity.

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 systems, Fluid power transmission.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 3.397"CS = 0.210"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.