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Buna-N O-Ring 2.273" ID x 5.116" OD x 0.141" CS | Industrial Sealing

Expert Overview

This industrial O-ring, crafted from durable Buna-N, offers superior sealing performance in demanding environments. Engineered with precise dimensions, it ensures reliable containment and protection for critical systems.

StandardDIN 933
MaterialPolycarbonate
FinishZinc Plated
GradeN/A
Inside Diameter2.273"
Outside Diameter5.116"
Cross Section0.141"

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this Buna-N O-ring exhibits excellent resistance to oils, fuels, and many hydraulic fluids. Its precise dimensions – an inside diameter of 2.273 inches, an outside diameter of 5.116 inches, and a cross-section of 0.141 inches – guarantee a tight, leak-proof seal in static and dynamic applications. Ideal for hydraulic systems, pneumatic assemblies, automotive components, and general industrial machinery where robust chemical resistance and consistent performance are 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 groove surfaces are clean and free from debris. 2. Lightly lubricate the O-ring and groove with a compatible lubricant. 3. Carefully install the O-ring into the designated groove, avoiding excessive stretching or twisting.

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
Using excessive force during installation.Apply gentle, even pressure to seat the O-ring properly. Avoid tools that can nick or cut the seal.
Incorrect lubricant selection.Always use a lubricant compatible with Buna-N and the media being sealed to prevent premature degradation.

Common Applications

  • Hydraulic cylinder seals
  • Pneumatic actuators
  • Fuel system components
  • Automotive engine seals
  • Industrial pump seals

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing acids or ketones.
  • Ensure operating temperature is within the specified range for Buna-N to maintain seal integrity.

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 cylinder seals, Pneumatic actuators, Fuel system components, Automotive engine seals, Industrial pump seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.273"CS = 0.141"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.