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Industrial O-Ring | Buna-N | 2.644" ID | 8.418" OD | 304 SS

Expert Overview

This industrial O-ring, crafted from robust 304 stainless steel, ensures reliable sealing in demanding environments. Its precise dimensions guarantee a secure fit and long-lasting performance.

StandardISO 9001
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Diameter2.644"
Outside Diameter8.418"
Cross Section0.221"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this Buna-N O-ring features an Inside Diameter (ID) of 2.644 inches, an Outside Diameter (OD) of 8.418 inches, and a Cross Section (CS) of 0.221 inches. The 304 stainless steel construction offers excellent corrosion resistance, making it suitable for a wide range of chemical and industrial applications. Buna-N (Nitrile Butadiene Rubber) provides good resistance to oils, fuels, and many common hydraulic fluids. This combination ensures a durable and effective seal, preventing leaks in critical systems.

🧊 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:Yes

Installation Procedure

1. Ensure the mating grooves are clean and free of debris. 2. Carefully stretch or compress the O-ring to fit into the designated groove. 3. Verify proper seating and even compression of the O-ring within the groove before assembly.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

Mechanical Properties

Tensile Strength75,000 psi (515 MPa)
Yield Strength30,000 psi (205 MPa)
Elongation in 2 in.40% min
HardnessRockwell B95 max

Chemical Composition

Carbon (C)0.08% max
Chromium (Cr)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°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 / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using an O-ring with incorrect dimensions for the groove.Always verify the O-ring's ID, OD, and CS match the specified groove dimensions to ensure a proper seal and prevent extrusion.
Overstretching or twisting the O-ring during installation.Install the O-ring gently, avoiding excessive stretching or twisting, which can damage the seal and lead to premature failure.
Installing on a dirty or damaged groove surface.Thoroughly clean and inspect the groove for any imperfections, burrs, or contaminants before O-ring installation to prevent damage and ensure a reliable seal.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Chemical processing equipment
  • Automotive seals
  • Industrial machinery

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing acids or polar solvents.
  • Ensure compatibility with the specific fluid or gas being sealed.

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 304 Stainless Steel.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic equipment, Chemical processing equipment, Automotive seals, Industrial machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.644"CS = 0.221"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.