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

Buna-N Aluminum O-Ring - 4.196" ID x 10.877" OD

Expert Overview

This robust Buna-N O-ring, reinforced with Aluminum 6061, provides superior sealing in demanding industrial environments. Engineered for exceptional durability and chemical resistance.

StandardASME B18
MaterialAluminum 6061
FinishGalvanized
GradeN/A
Inside Diameter4.196"
Outside Diameter10.877"
Cross Section0.274"

Detailed Engineering Specifications

Engineered for reliability and performance, this industrial O-ring features a Buna-N sealing element bonded to a precisely machined Aluminum 6061 housing. The Aluminum 6061 substrate offers excellent structural integrity and corrosion resistance, ensuring long-term performance in challenging conditions. With an Inside Diameter of 4.196 inches, an Outside Diameter of 10.877 inches, and a Cross Section of 0.274 inches, this O-ring is designed for precise fitment and effective sealing in hydraulic systems, pneumatic assemblies, and fluid power applications where resilience and chemical compatibility with oils, fuels, and many hydraulic fluids are critical. The Buna-N material provides good resistance to abrasion and moderate temperatures.

🧊 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 sealing surfaces are clean, dry, and free of debris. 2. Carefully inspect the O-ring for any damage or defects. 3. Gently install the O-ring into its designated groove, ensuring it is properly seated and not twisted.

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
Overtightening fasteners, which can compress the O-ring beyond its elastic limit.Follow manufacturer torque specifications and use a calibrated torque wrench.
Using incompatible cleaning solvents that can degrade the Buna-N material.Consult the Buna-N chemical resistance chart and use approved cleaning agents.

Common Applications

  • Hydraulic cylinder seals
  • Pneumatic actuator seals
  • Fluid power manifold seals

⚠️ Engineering Warnings

  • Not recommended for use with strong oxidizing agents, ketones, or esters.
  • Avoid exposure to UV light and ozone, which can degrade Buna-N over time.

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 cylinder seals, Pneumatic actuator seals, Fluid power manifold seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 4.196"CS = 0.274"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.