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3.093" Buna-N O-Ring - 10.914" OD, 0.210" CS

Expert Overview

This industrial Buna-N O-ring offers exceptional sealing performance and durability. Engineered for critical applications requiring resistance to oils, fuels, and many chemicals.

StandardASME B18
MaterialPolycarbonate
FinishBlack Oxide
GradeN/A
Inside Diameter3.093"
Outside Diameter10.914"
Cross Section0.210"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this Buna-N O-ring boasts an inside diameter of 3.093 inches, an outside diameter of 10.914 inches, and a 0.210-inch cross-section. Composed of Buna-N (Nitrile Butadiene Rubber), it exhibits excellent resistance to petroleum-based oils, hydraulic fluids, and aliphatic hydrocarbons. This material's inherent resilience and resistance to abrasion make it ideal for dynamic and static sealing in moderate temperature ranges, ensuring reliable performance in demanding industrial 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 from debris. 2. Apply a thin, compatible lubricant if recommended for the application. 3. Carefully position the O-ring into its groove, avoiding stretching or twisting.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

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 the wrong lubricant that degrades Buna-N.Consult a chemical compatibility chart to select a lubricant specifically approved for Buna-N.
Overstretching the O-ring during installation.Install the O-ring without excessive tension, ensuring it fits snugly within the groove.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Fuel and oil handling equipment

⚠️ Engineering Warnings

  • Not suitable for use with ozone, ketones, esters, or chlorinated hydrocarbons.
  • Performance may degrade at elevated temperatures beyond its recommended operating range.

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, Pneumatic cylinders, Fuel and oil handling equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 3.093"CS = 0.210"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.