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

Buna-N O-Ring | 1.139" ID x 8.552" OD | Aluminum 6061

Expert Overview

This industrial-grade Buna-N O-ring, manufactured from robust Aluminum 6061, ensures reliable sealing in challenging conditions. Its precise dimensions provide a secure fit for critical applications.

StandardISO 9001
MaterialAluminum 6061
FinishPlain
GradeN/A
Inside Diameter1.139"
Outside Diameter8.552"
Cross Section0.154"

Detailed Engineering Specifications

Designed for demanding industrial environments, this Buna-N O-ring features an inside diameter of 1.139", an outside diameter of 8.552", and a cross-section of 0.154". The nitrile butadiene rubber (Buna-N) compound offers excellent resistance to oils, fuels, and many hydraulic fluids, making it suitable for a wide range of dynamic and static sealing applications. The aluminum housing provides structural integrity and compatibility with certain corrosive environments, though the sealing element is the Buna-N. Its durometer hardness is optimized for effective compression and sealing pressure under typical operating conditions.

🧊 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 groove or mating surfaces are clean and free of debris. 2. Carefully lubricate the O-ring with a compatible lubricant, if recommended for the application. 3. Gently install the O-ring into the groove, avoiding stretching or twisting.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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 or overstretching during installation.Install the O-ring without excessive force and ensure it sits correctly within the groove to prevent damage and ensure proper sealing.
Using incompatible lubricants or cleaning agents.Always consult the material compatibility chart for Buna-N and the specific application environment to select appropriate lubricants and cleaning agents.

Common Applications

  • Hydraulic Systems
  • Pneumatic Cylinders
  • Fuel Systems
  • Chemical Processing Equipment

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents, ketones, or esters.
  • Avoid exposure to direct sunlight or ozone for prolonged periods, as this can degrade the Buna-N material.

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 Cylinders, Fuel Systems, Chemical Processing Equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 1.139"CS = 0.154"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.