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Buna-N Industrial O-Ring | 8.721" ID x 5.982" OD | Polycarbonate

Expert Overview

This industrial O-ring, crafted from robust Buna-N and housed within a polycarbonate material, ensures reliable sealing. Its precise dimensions offer a secure fit for critical applications.

StandardASTM A106
MaterialPolycarbonate
FinishZinc Plated
GradeN/A
Inside Diameter8.721"
Outside Diameter5.982"
Cross Section0.138"

Detailed Engineering Specifications

Manufactured under strict quality controls, this Buna-N O-ring features an inside diameter of 8.721 inches, an outside diameter of 5.982 inches, and a cross-section of 0.138 inches. The Buna-N material provides excellent resistance to oils, fuels, and many hydraulic fluids, making it suitable for a wide range of industrial environments. Its inherent resilience and compression set resistance ensure long-term sealing integrity. The polycarbonate housing offers enhanced rigidity and chemical compatibility for specific operational needs.

🧊 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 sealing surfaces are clean, dry, and free of debris. 2. Carefully compress the O-ring to fit into the designated groove or mating surface, avoiding any pinching or stretching beyond its elastic limits. 3. Verify proper seating and even compression across the entire circumference to achieve a leak-free 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

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
O-ring is pinched during installation, leading to premature failure and leaks.Always ensure the sealing groove is adequately sized and smooth. Lubricate the O-ring and sealing surfaces with a compatible lubricant to ease installation and prevent pinching.
Using an O-ring material incompatible with the fluid or environment, resulting in degradation and seal failure.Confirm the Buna-N material's chemical compatibility with the specific media and operating temperature range of your application before installation.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Automotive sealing
  • Industrial machinery

⚠️ Engineering Warnings

  • Do not exceed the specified operating temperature range for Buna-N material.
  • Ensure chemical compatibility with all fluids and gases in the system.

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 Polycarbonate.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic equipment, Automotive sealing, Industrial machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 8.721"CS = 0.138"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.