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Buna-N Brass O-Ring | 2.746" ID x 9.174" OD x 0.153" CS

Expert Overview

This industrial O-ring, constructed from robust Buna-N with brass end caps, provides reliable sealing in high-pressure applications. Its precise dimensions ensure a secure fit and long-term performance.

StandardASTM A106
MaterialBrass
FinishZinc Plated
GradeN/A
Inside Diameter2.746"
Outside Diameter9.174"
Cross Section0.153"

Detailed Engineering Specifications

Designed for demanding industrial environments, this Buna-N O-ring features a precise Inside Diameter of 2.746 inches, an Outside Diameter of 9.174 inches, and a Cross Section of 0.153 inches. The Buna-N (Nitrile Butadiene Rubber) material offers excellent resistance to petroleum-based oils, fuels, and hydraulic fluids, while the brass end caps enhance structural integrity and prevent extrusion under high pressure. This combination makes it ideal for static and dynamic sealing applications where chemical and mechanical resilience 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:N/A

Installation Procedure

1. Ensure the mating surfaces are clean, dry, and free from burrs or debris. 2. Carefully lubricate the O-ring and groove with a compatible lubricant. 3. Gently install the O-ring into the groove, avoiding any stretching or twisting, to achieve a proper seal.

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

Copper (Cu)60.0 - 63.0%
Zinc (Zn)Balance
Lead (Pb)2.5 - 3.7%

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 excessive force during installation, leading to O-ring damage.Apply only enough force to seat the O-ring, ensuring it is not pinched or stretched.
Incorrect lubricant selection, compromising material integrity.Always consult the O-ring material compatibility chart for the appropriate lubricant.

Common Applications

  • Hydraulic cylinder seals
  • Pneumatic systems
  • Automotive fuel systems

⚠️ Engineering Warnings

  • Not suitable for exposure to ozone, strong acids, or ketones.
  • Ensure operating temperature remains within the specified range for Buna-N rubber.

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 Brass.

Q: What are the main applications?

A: Hydraulic cylinder seals, Pneumatic systems, Automotive fuel systems.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.746"CS = 0.153"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.