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Buna-N Industrial O-Ring 7.826" ID | Polycarbonate | Sealing Solutions

Expert Overview

Engineered for robust industrial environments, this Buna-N O-ring offers superior sealing performance. Its durable construction ensures long-lasting reliability across a range of demanding applications, making it a trusted component for critical systems.

StandardASTM A106
MaterialPolycarbonate
FinishPassivated
GradeN/A
Inside Diameter7.826"
Outside Diameter10.784"
Cross Section0.146"

Detailed Engineering Specifications

A proven choice for industrial professionals, this Buna-N O-ring is precisely manufactured to meet stringent performance requirements. Featuring an Inside Diameter of 7.826 inches, an Outside Diameter of 10.784 inches, and a Cross Section of 0.146 inches, it provides a reliable seal in medium-pressure applications. Buna-N (Nitrile) material offers excellent resistance to petroleum-based oils, hydraulic fluids, and many other chemicals, making it suitable for a wide array of industrial fluid handling and power 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 surfaces are clean, dry, and free from debris. 2. Carefully position the O-ring onto the designated groove or shaft, avoiding any stretching or twisting. 3. Apply a light lubrication compatible with Buna-N if necessary to facilitate assembly and prevent damage.

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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Overstretching the O-ring during installation, leading to premature failure and leakage.Handle the O-ring gently and avoid excessive tension. If needed, use a compatible lubricant to aid in smooth placement without stretching.
Installing the O-ring on a dirty or damaged surface, compromising the seal integrity.Thoroughly clean and inspect mating surfaces for any nicks, burrs, or contamination before installation.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Fluid power transmissions
  • Automotive seals

⚠️ Engineering Warnings

  • Not recommended for use with ozone, UV, or weathering, as Buna-N degrades under these conditions.
  • Avoid exposure to strong acids, esters, ketones, and chlorinated hydrocarbons, which can cause material degradation.

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 cylinders, Fluid power transmissions, Automotive seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.826"CS = 0.146"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.