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Industrial O-Ring, Buna-N, Carbon Steel, 6.680" ID x 10.420" OD

Expert Overview

Engineered for demanding industrial applications, this Buna-N O-ring offers exceptional sealing performance. Constructed with a durable carbon steel core for enhanced rigidity and structural integrity, ensuring reliable operation under pressure.

StandardISO 9001
MaterialCarbon Steel
FinishBlack Oxide
GradeN/A
Inside Diameter6.680"
Outside Diameter10.420"
Cross Section0.232"

Detailed Engineering Specifications

A proven choice for industrial professionals, this Buna-N O-ring is meticulously manufactured to precise specifications, featuring an Inside Diameter of 6.680 inches, an Outside Diameter of 10.420 inches, and a Cross Section of 0.232 inches. The Buna-N (Nitrile Butadiene Rubber) material provides excellent resistance to oils, fuels, and many hydraulic fluids, making it suitable for a wide array of operational conditions. Its robust carbon steel construction offers superior dimensional stability and load-bearing capabilities compared to standard elastomer O-rings, ideal for high-pressure or structural sealing requirements in machinery, fluid power systems, and heavy equipment.

🧊 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. Clean both the groove and the O-ring thoroughly to remove any debris or contaminants. 2. Carefully inspect the O-ring for any signs of damage, such as nicks or abrasions. 3. Gently install the O-ring into the designated groove, ensuring it sits evenly and is not twisted.

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

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 during installation, leading to deformation or extrusion.Apply only sufficient force to seat the O-ring; do not over-compress it.
Using incompatible cleaning solvents that can degrade the Buna-N material.Use only recommended cleaning agents, such as mild soap and water, or specific elastomer-safe solvents.

Common Applications

  • Hydraulic cylinder sealing
  • Pneumatic systems
  • Automotive fluid sealing
  • Industrial machinery components

⚠️ Engineering Warnings

  • Ensure compatibility of the sealing environment with Buna-N material properties.
  • Avoid exposure to ozone, strong acids, or ester-based hydraulic fluids, which can degrade Buna-N.

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 cylinder sealing, Pneumatic systems, Automotive fluid sealing, Industrial machinery components.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.680"CS = 0.232"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.