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Buna-N O-Ring | 7.240" OD | 9.959" ID | Nylon - Industrial Sealing

Expert Overview

Engineered for superior sealing performance, this Buna-N O-ring offers exceptional resistance to fuels, oils, and hydraulic fluids. Its robust construction ensures reliable operation in critical industrial applications.

StandardASME B18
MaterialNylon
FinishPlain
GradeN/A
Inside Diameter9.959"
Outside Diameter7.240"
Cross Section0.088"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this industrial O-ring features an Outside Diameter of 7.240 inches, an Inside Diameter of 9.959 inches, and a Cross Section of 0.088 inches. Constructed from Nylon-reinforced Buna-N (Nitrile Butadiene Rubber), it provides excellent resistance to abrasion, petroleum-based oils, hydraulic fluids, water, and many other chemicals. This material composition makes it ideal for applications requiring durable, long-lasting seals in moderate temperature ranges, ensuring consistent performance and preventing leakage in dynamic and static sealing scenarios.

🧊 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 sealing groove is clean and free from debris. 2. Carefully stretch the O-ring over the component, avoiding excessive force. 3. Gently seat the O-ring into the groove, ensuring no twists or kinks.

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

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
Overtightening during installation, leading to premature failure.Apply only enough force to seat the O-ring, avoiding excessive stretching or compression.
Using the wrong O-ring material for the application's chemical or temperature environment.Always verify material compatibility with the specific fluids and operating conditions before selection.

Common Applications

  • Hydraulic systems
  • Automotive fuel systems
  • Pneumatic cylinders
  • General industrial machinery

⚠️ Engineering Warnings

  • Not suitable for ozone, strong acids, or polar solvents.
  • Operating temperature range is critical for optimal performance and longevity.

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 Nylon.

Q: What are the main applications?

A: Hydraulic systems, Automotive fuel systems, Pneumatic cylinders, General industrial machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 9.959"CS = 0.088"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.