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

Buna-N Carbon Steel O-Ring | 2.413" ID x 3.175" OD

Expert Overview

This industrial O-ring, constructed from robust Buna-N and featuring a carbon steel housing, provides exceptional sealing performance. Its precise dimensions ensure a tight fit for critical applications, offering durability and resistance.

StandardASTM A106
MaterialCarbon Steel
FinishPassivated
GradeN/A
Inside Diameter2.413"
Outside Diameter3.175"
Cross Section0.159"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this industrial O-ring boasts a Buna-N sealing element housed within a durable carbon steel casing. With an Inside Diameter of 2.413 inches, an Outside Diameter of 3.175 inches, and a Cross Section of 0.159 inches, it offers a secure and reliable seal in demanding operational environments. The Buna-N material provides excellent resistance to petroleum-based oils, fuels, and hydraulic fluids, making it suitable for a wide range of industrial fluid power and general sealing applications where moderate temperatures and pressures are encountered.

🧊 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 groove surfaces are clean, dry, and free from debris. 2. Carefully stretch the O-ring over the male component or into the female groove, avoiding sharp tools that could damage the Buna-N. 3. Verify the O-ring is seated properly within the groove and is not twisted or pinched before assembly is completed.

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
Using excessive force during installation, leading to O-ring damage.Apply gentle pressure and use appropriate tools to avoid nicking or tearing the O-ring.
Incorrect O-ring size for the groove, resulting in leaks or premature failure.Always confirm the O-ring dimensions (ID, OD, CS) match the groove specifications precisely.

Common Applications

  • Hydraulic cylinders and pumps
  • Automotive fuel systems
  • Industrial fluid transfer

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications exceeding Buna-N's operational limits.
  • Avoid exposure to strong oxidizing acids, ketones, or esters, 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 cylinders and pumps, Automotive fuel systems, Industrial fluid transfer.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.413"CS = 0.159"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.