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Buna-N Industrial O-Ring - 8.640" ID x 10.898" OD

Expert Overview

This robust Buna-N O-ring, constructed with a carbon steel core, provides exceptional sealing integrity and structural support in high-pressure industrial environments. Engineered for durability and resistance.

StandardASTM A106
MaterialCarbon Steel
FinishBlack Oxide
GradeN/A
Inside Diameter8.640"
Outside Diameter10.898"
Cross Section0.247"

Detailed Engineering Specifications

Specified by design engineers worldwide, this industrial O-ring features a precise Inside Diameter of 8.640 inches, an Outside Diameter of 10.898 inches, and a substantial Cross Section of 0.247 inches. The Buna-N elastomer offers excellent resistance to oils, fuels, and many hydraulic fluids, while the integrated carbon steel core provides enhanced rigidity and crush resistance, making it ideal for applications requiring static seals under extreme pressure and temperature fluctuations.

🧊 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:Yes

Installation Procedure

1. Ensure sealing surfaces are clean, dry, and free of debris. 2. Carefully place the O-ring into the designated groove, avoiding stretching or twisting. 3. Apply a thin, compatible lubricant if necessary for easier assembly and to prevent damage during installation.

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

Chemical Composition

Carbon (C)0.28 - 0.55%
Manganese (Mn)0.60 - 0.90%
Phosphorus (P)0.04% max
Sulfur (S)0.05% max

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 fasteners, which can crush the O-ring and compromise the seal.Adhere to torque specifications provided in equipment manuals and use a calibrated torque wrench.
Using incorrect O-ring material for the fluid or operating environment.Verify material compatibility with the specific chemicals and temperatures of the application before selection.

Common Applications

  • Hydraulic Systems
  • Pneumatic Cylinders
  • Automotive Components
  • Industrial Machinery

⚠️ Engineering Warnings

  • Not suitable for applications involving strong oxidizing agents, ketones, or esters.
  • Avoid prolonged exposure to UV light or ozone, which can degrade 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 Carbon Steel.

Q: What are the main applications?

A: Hydraulic Systems, Pneumatic Cylinders, Automotive Components, Industrial Machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 8.640"CS = 0.247"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.