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Industrial O-Ring, Buna-N, 2.966" ID, 10.439" OD

Expert Overview

This robust industrial O-ring, crafted from Buna-N with a carbon steel core, provides reliable sealing in demanding applications. Its precise dimensions ensure a tight fit and effective fluid containment.

StandardASME B18
MaterialCarbon Steel
FinishPassivated
GradeN/A
Inside Diameter2.966"
Outside Diameter10.439"
Cross Section0.086"

Detailed Engineering Specifications

Specified by design engineers worldwide, this industrial O-ring features a nominal inside diameter of 2.966 inches and an outside diameter of 10.439 inches, with a precise 0.086-inch cross-section. The Buna-N (Nitrile Butadiene Rubber) material offers excellent resistance to oils, fuels, and hydraulic fluids, while the integrated carbon steel core enhances structural integrity and dimensional stability under pressure and temperature fluctuations. This combination makes it ideal for static and dynamic sealing applications where chemical resistance and mechanical strength are paramount.

🧊 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 the mating grooves are clean, free of debris, and properly lubricated with a compatible lubricant. 2. Carefully install the O-ring, avoiding stretching or twisting, ensuring it sits evenly within the groove. 3. Apply mating components slowly and evenly, allowing the O-ring to seat without excessive compression or damage.

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

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
Using excessive force during installation, leading to nicks or tears in the O-ring.Apply gentle, even pressure and use appropriate installation tools if necessary to prevent damage.
Incorrect lubrication or using incompatible lubricants, which can degrade the Buna-N material.Always use a lubricant recommended for Buna-N and the specific application fluid.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Automotive fuel systems
  • General industrial machinery

⚠️ Engineering Warnings

  • Not recommended for use with ozone, strong oxidizing agents, or polar solvents.
  • Ensure operating temperatures remain within the specified range for Buna-N to maintain sealing integrity.

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 fuel systems, General industrial machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.966"CS = 0.086"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.