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

Buna-N Brass O-Ring: 9.588" ID x 7.528" OD x 0.234" CS

Expert Overview

This industrial-grade Buna-N O-ring features a durable brass construction, offering excellent sealing capabilities in a wide range of industrial environments. Its precise dimensions ensure reliable performance for critical fluid and gas containment.

StandardASME B18
MaterialBrass
FinishPassivated
GradeN/A
Inside Diameter9.588"
Outside Diameter7.528"
Cross Section0.234"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this Buna-N O-ring is manufactured to exacting standards for superior sealing performance. Featuring an inside diameter of 9.588 inches, an outside diameter of 7.528 inches, and a cross-section of 0.234 inches, it is constructed from Buna-N (Nitrile Rubber) for its excellent resistance to oils, fuels, and many hydraulic fluids. The brass material provides robust mechanical strength and corrosion resistance in specific environments, making it suitable for applications requiring a combination of chemical resistance and structural integrity.

🧊 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 groove is clean, free of debris, and properly lubricated with a compatible lubricant. 2. Carefully place the O-ring into the groove, avoiding any stretching or twisting. 3. Apply gentle, even pressure to seat the O-ring completely within the groove.

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

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.Gently ease the O-ring into the groove without excessive stretching to maintain its original shape and sealing properties.
Installing on a dirty or damaged groove surface.Thoroughly clean and inspect the groove for nicks or burrs before installation to prevent leaks and premature wear.

Common Applications

  • Hydraulic systems
  • Pneumatic systems
  • Fuel and oil handling equipment
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications exceeding the operational limits of Buna-N rubber.
  • Verify chemical compatibility of Buna-N with the specific media being sealed, especially in aggressive chemical environments.

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, Fuel and oil handling equipment, Chemical processing equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 9.588"CS = 0.234"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.