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Buna-N Brass Industrial O-Ring | 7.409" ID x 9.122" OD

Expert Overview

This industrial O-ring, crafted from durable Buna-N and featuring a brass component, provides reliable sealing for critical applications. Engineered for precision, it ensures leak-free performance in diverse industrial settings.

StandardASTM A106
MaterialBrass
FinishZinc Plated
GradeN/A
Inside Diameter7.409"
Outside Diameter9.122"
Cross Section0.173"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this industrial O-ring boasts a precise inside diameter of 7.409", an outside diameter of 9.122", and a robust cross-section of 0.173". The Buna-N material offers excellent resistance to oils, fuels, and hydraulic fluids, while the brass component provides inherent corrosion resistance and compatibility with certain fluid systems. This combination ensures reliable and long-lasting sealing in demanding industrial environments subjected to moderate temperatures and pressures.

🧊 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 sealing groove and O-ring are clean and free from debris. 2. Carefully place the O-ring into the groove, avoiding stretching or twisting. 3. Verify proper seating and alignment before assembling mating components.

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
Overtightening the assembly, which can compress and damage the O-ring.Tighten fasteners to the manufacturer's recommended torque specifications.
Using a sharp or abrasive tool to install the O-ring, leading to nicks or cuts.Employ plastic or soft metal installation tools, or use a lubricant compatible with Buna-N.

Common Applications

  • Hydraulic Systems
  • Pneumatic Systems
  • Fluid Transfer Lines

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications exceeding Buna-N's operational limits.
  • Avoid exposure to strong oxidizing agents and certain solvents that 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 Brass.

Q: What are the main applications?

A: Hydraulic Systems, Pneumatic Systems, Fluid Transfer Lines.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.409"CS = 0.173"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.