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Industrial O-Ring, Buna-N, 4.136" ID x 7.285" OD

Expert Overview

This industrial O-ring, crafted from resilient Buna-N and precisely machined from Aluminum 6061, ensures reliable sealing in high-pressure and corrosive environments.

StandardDIN 933
MaterialAluminum 6061
FinishBlack Oxide
GradeN/A
Inside Diameter4.136"
Outside Diameter7.285"
Cross Section0.250"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this industrial O-ring boasts a precise Inside Diameter of 4.136 inches and an Outside Diameter of 7.285 inches, with a robust 0.250-inch cross-section. Engineered from Aluminum 6061, it offers excellent machinability and good corrosion resistance, making it suitable for a wide range of static and dynamic sealing applications in automotive, aerospace, and general industrial machinery.

🧊 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. Clean sealing groove and O-ring thoroughly. 2. Lubricate the O-ring with a compatible lubricant. 3. Carefully install the O-ring into the groove, ensuring it is not twisted.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

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 extrusion or damage.Apply gentle, consistent pressure and use appropriate tools if necessary, ensuring the O-ring sits flush within the groove.
Incorrect O-ring selection for the application's temperature or chemical exposure.Verify material compatibility with the operating environment and confirm the O-ring's temperature range meets or exceeds application requirements.

Common Applications

  • Hydraulic and pneumatic systems
  • Fluid power equipment
  • Automotive fuel and oil systems

⚠️ Engineering Warnings

  • Not recommended for use with strong oxidizing agents or high concentrations of aromatic hydrocarbons.
  • Ensure proper groove design to prevent O-ring damage and leakage.

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 Aluminum 6061.

Q: What are the main applications?

A: Hydraulic and pneumatic systems, Fluid power equipment, Automotive fuel and oil systems.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 4.136"CS = 0.250"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.