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

Buna-N O-Ring | 7.637" ID | 8.402" OD | Aluminum 6061

Expert Overview

This high-performance Buna-N O-ring, crafted from robust Aluminum 6061, provides exceptional sealing capabilities. Engineered for demanding industrial environments, it ensures reliable fluid and gas containment.

StandardASME B18
MaterialAluminum 6061
FinishZinc Plated
GradeN/A
Inside Diameter7.637"
Outside Diameter8.402"
Cross Section0.173"

Detailed Engineering Specifications

A high-performance industrial component, this Buna-N O-ring boasts an Inside Diameter (ID) of 7.637 inches and an Outside Diameter (OD) of 8.402 inches, with a precise Cross Section (CS) of 0.173 inches. The material composition of Aluminum 6061 offers excellent machinability and corrosion resistance, making it suitable for applications requiring a balance of strength and weight. Its robust design ensures effective sealing against a wide range of fluids and gases under moderate pressures and temperatures, commonly found in hydraulic systems, pneumatic equipment, 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 is clean and free of debris. 2. Carefully stretch the O-ring over the component, avoiding excessive force or sharp tools. 3. Seat the O-ring squarely within the groove to prevent twisting or pinching.

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 damaged or nicked O-rings.Inspect O-rings for any surface imperfections before installation. Replace any damaged components.
Over-stretching or twisting the O-ring during installation.Gently guide the O-ring into its groove, ensuring it lies flat and is not twisted, which can compromise the seal.

Common Applications

  • Hydraulic Systems
  • Pneumatic Actuators
  • General Machinery Sealing

⚠️ Engineering Warnings

  • Not recommended for use with strong oxidizing acids or certain hydrocarbons.
  • Ensure compatibility with the specific fluid or gas being sealed.

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 Actuators, General Machinery Sealing.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.637"CS = 0.173"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.