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Buna-N Industrial O-Ring | 9.904" ID | Brass Material

Expert Overview

This Buna-N industrial O-ring, crafted with durable brass for exceptional performance, offers reliable sealing in a wide range of demanding applications. Engineered for longevity and chemical resistance.

StandardASTM A106
MaterialBrass
FinishBlack Oxide
GradeN/A
Inside Diameter9.904"
Outside Diameter8.986"
Cross Section0.142"

Detailed Engineering Specifications

A proven choice for industrial professionals, this Buna-N O-ring boasts an inside diameter of 9.904 inches, an outside diameter of 8.986 inches, and a cross-section of 0.142 inches. The Buna-N (Nitrile) material provides excellent resistance to oils, fuels, hydraulic fluids, and many other chemicals, making it suitable for moderate temperature ranges and general-purpose sealing. The brass element in its construction signifies a specific application requirement or compatibility, often related to the mating components or fluid media. This O-ring is designed to maintain seal integrity under pressure, preventing leaks in critical systems.

🧊 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 grooves are clean, free of debris, and properly dimensioned. 2. Lightly lubricate the O-ring with a compatible lubricant (e.g., silicone grease or a fluid from the intended application) for easier installation and to prevent damage. 3. Carefully install the O-ring into the groove, avoiding stretching or twisting, and ensuring it sits evenly.

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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Overstretching the O-ring during installation.Use appropriate lubrication and ensure the groove dimensions are correct to minimize the need for excessive stretching.
Using incompatible lubricants or cleaning agents.Always verify lubricant and cleaning agent compatibility with Buna-N material and the specific application fluid.
Installing the O-ring into a damaged or dirty groove.Thoroughly inspect and clean mating grooves before installation to prevent premature seal failure.

Common Applications

  • Hydraulic systems
  • Pneumatic assemblies
  • Fuel and oil handling equipment
  • General industrial machinery
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Not suitable for use with ozone, ketones, esters, or chlorinated hydrocarbons.
  • Operating temperature range should be considered to ensure material integrity and sealing performance.

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 assemblies, Fuel and oil handling equipment, General industrial machinery, Chemical processing equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 9.904"CS = 0.142"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.