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Buna-N O-Ring | 3.761" ID x 2.410" OD | Industrial Sealing

Expert Overview

This industrial Buna-N O-ring provides robust sealing in a 3.761" ID, 2.410" OD configuration. Engineered for reliable performance, it offers excellent resistance to oils and chemicals.

StandardDIN 933
MaterialPolycarbonate
FinishGalvanized
GradeN/A
Inside Diameter3.761"
Outside Diameter2.410"
Cross Section0.155"

Detailed Engineering Specifications

Manufactured under strict quality controls, this Buna-N O-ring features a precise inside diameter of 3.761 inches, an outside diameter of 2.410 inches, and a cross-section of 0.155 inches. Buna-N (Nitrile Butadiene Rubber) is selected for its superior resistance to petroleum-based oils, hydraulic fluids, and many chemicals, making it ideal for applications requiring a durable and reliable seal against these media. Its excellent resilience and abrasion resistance ensure long service life in demanding environments.

🧊 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 and free of debris. 2. Carefully stretch the O-ring over the shaft or into the groove, avoiding excessive force. 3. Verify the O-ring is properly seated and not twisted in its groove.

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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Stretching the O-ring excessively during installation.Use appropriate tools or techniques to gently place the O-ring, minimizing stretch to prevent premature failure.
Installing on dirty or damaged mating surfaces.Thoroughly clean and inspect all sealing surfaces for nicks, burrs, or contamination before installing the O-ring.

Common Applications

  • Hydraulic systems
  • Automotive sealing
  • Pneumatic cylinders

⚠️ Engineering Warnings

  • Not suitable for exposure to ozone, UV, or high-temperature steam.
  • Ensure compatibility with specific fluid and operating temperature ranges.

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, Automotive sealing, Pneumatic cylinders.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 3.761"CS = 0.155"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.