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

Industrial Buna-N O-Ring | 8.88" ID x 1.05" OD | Brass

Expert Overview

This industrial-grade O-ring, constructed from robust Buna-N, ensures reliable sealing in high-pressure and demanding environments. Its precise dimensions and material composition make it ideal for a wide range of fluid power and mechanical systems.

StandardISO 9001
MaterialBrass
FinishAnodized
GradeN/A
Inside Diameter8.880"
Outside Diameter1.050"
Cross Section0.194"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this Buna-N O-ring offers superior performance and longevity. With an inside diameter of 8.880 inches, an outside diameter of 1.050 inches, and a cross-section of 0.194 inches, it provides a secure and leak-proof seal. Buna-N (Nitrile Butadiene Rubber) exhibits excellent resistance to oils, fuels, and many hydraulic fluids, making it suitable for applications within a moderate temperature range. Its inherent resilience and compression set resistance ensure sustained sealing effectiveness over time, crucial for maintaining system 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. Inspect the groove and mating surfaces for cleanliness and absence of damage. 2. Lightly lubricate the O-ring with a compatible lubricant to prevent tearing during installation. 3. Carefully place the O-ring into the designated groove, ensuring it is seated evenly and without twisting.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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
Using excessive force during installation, leading to O-ring damage.Apply a compatible lubricant and gently guide the O-ring into the groove.
Installing on a dirty or damaged groove, compromising the seal.Thoroughly clean and inspect the groove before O-ring placement.
Over-stretching or twisting the O-ring during installation.Ensure the O-ring is installed in its natural state, without distortion.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Fluid power equipment
  • Automotive sealing
  • Industrial machinery

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents or ketones.
  • Consult material compatibility charts for specific fluid and temperature ranges.

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 cylinders, Fluid power equipment, Automotive sealing, Industrial machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 8.880"CS = 0.194"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.