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Buna-N Industrial O-Ring | 5.461" ID x 1.576" OD

Expert Overview

This robust industrial O-ring, crafted from resilient Buna-N (Nitrile), provides superior sealing performance. Engineered for longevity and resistance to common industrial fluids and chemicals.

StandardDIN 933
MaterialNylon
FinishPassivated
GradeN/A
Inside Diameter5.461"
Outside Diameter1.576"
Cross Section0.224"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this Buna-N O-ring boasts an inside diameter of 5.461 inches, an outside diameter of 1.576 inches, and a cross-section of 0.224 inches. The nitrile butadiene rubber (Buna-N) material offers excellent resistance to petroleum-based oils, fuels, water, and hydraulic fluids, making it ideal for a wide range of static and dynamic sealing applications. Its operational temperature range typically spans from -40°F to +257°F (-40°C to +125°C), providing dependable sealing across various industrial conditions.

🧊 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 groove surfaces are clean, dry, and free from debris. 2. Carefully stretch or compress the O-ring to fit into the designated groove, avoiding any twisting or pinching. 3. Verify proper seating and compression of the O-ring within the groove before assembling the mating components.

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
Overtightening fasteners, causing excessive compression and premature failure.Tighten fasteners to the manufacturer's specified torque values to ensure optimal compression without overstressing the O-ring.
Using an O-ring material incompatible with the fluid or operating temperature.Consult chemical compatibility charts and temperature specifications to select an O-ring material (like Buna-N for oils) suitable for the application.

Common Applications

  • Hydraulic and pneumatic systems
  • Automotive fuel and oil systems
  • General industrial machinery seals

⚠️ Engineering Warnings

  • Avoid exposure to ozone, strong acids, and polar solvents, which can degrade Buna-N.
  • Do not use in applications requiring high abrasion resistance or exposure to direct sunlight.

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 and pneumatic systems, Automotive fuel and oil systems, General industrial machinery seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 5.461"CS = 0.224"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.