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Buna-N O-Ring - 5.604" ID, 4.105" OD, 0.253" CS

Expert Overview

This industrial-grade Buna-N O-ring provides superior sealing performance in demanding environments. Engineered for excellent resistance to oils, fuels, and many chemicals, ensuring reliable containment and preventing leaks.

StandardASTM A106
MaterialNylon
FinishPassivated
GradeN/A
Inside Diameter5.604"
Outside Diameter4.105"
Cross Section0.253"

Detailed Engineering Specifications

Manufactured under strict quality controls, this Buna-N O-ring features an Inside Diameter of 5.604 inches, an Outside Diameter of 4.105 inches, and a Cross Section of 0.253 inches. Buna-N (Nitrile) offers excellent resistance to petroleum-based oils, greases, hydraulic fluids, and water. Its broad temperature range (-40°F to +257°F) and good mechanical properties make it suitable for static and dynamic sealing in a wide array of industrial machinery, automotive components, and fluid power systems where chemical compatibility is paramount.

🧊 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 mating surfaces are clean, dry, and free of debris. 2. Lightly lubricate the O-ring and groove with a compatible lubricant. 3. Carefully install the O-ring into the designated groove, avoiding stretching or twisting.

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
Using excessive force during installation, leading to O-ring damage or deformation.Apply gentle, even pressure, and utilize appropriate installation tools if necessary to avoid overstretching or pinching the O-ring.
Incorrectly specifying or selecting an O-ring material not compatible with the fluid or temperature environment.Always verify the chemical and temperature resistance of the O-ring material against the application's specific operating conditions.

Common Applications

  • Hydraulic Systems
  • Pneumatic Cylinders
  • Fuel Systems
  • Oil and Gas Equipment
  • Automotive Seals

⚠️ Engineering Warnings

  • Not recommended for use with ozone, strong acids, or ketones.
  • Ensure proper lubrication to prevent premature wear and failure.

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, Pneumatic Cylinders, Fuel Systems, Oil and Gas Equipment, Automotive Seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 5.604"CS = 0.253"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.