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Buna-N Industrial O-Ring | 304 Stainless Steel

Expert Overview

This industrial O-ring, constructed with durable Buna-N and a robust 304 stainless steel core, is engineered for superior sealing performance. Its precise dimensions ensure a secure fit in critical applications.

StandardISO 9001
Material304 Stainless Steel
FinishPlain
GradeN/A
Inside Diameter6.247"
Outside Diameter9.800"
Cross Section0.090"

Detailed Engineering Specifications

Built to exacting engineering tolerances, this Buna-N O-ring features a precise 6.247-inch inside diameter, a 9.800-inch outside diameter, and a 0.090-inch cross-section. The nitrile butadiene rubber (Buna-N) compound offers excellent resistance to oils, fuels, and many hydraulic fluids, making it ideal for a wide range of industrial applications. The integrated 304 stainless steel construction provides enhanced structural integrity, chemical resistance, and high-temperature stability, ensuring long-term reliability in demanding operational conditions. This combination of materials makes it suitable for static and dynamic sealing applications where standard O-rings may fail.

🧊 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 sealing groove is clean, free of debris, and properly sized for the O-ring. 2. Carefully lubricate the O-ring with a compatible lubricant to prevent damage during installation. 3. Gently place the O-ring into the groove, ensuring it sits flush and is not twisted or stretched beyond its elastic limit.

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
Installing a dry O-ring, leading to friction damage and premature failure.Always use a compatible lubricant to reduce friction and protect the O-ring during installation.
Over-stretching or twisting the O-ring during placement, causing permanent deformation.Handle the O-ring with care, ensuring it is placed correctly without excessive elongation or twisting.
Using the wrong size O-ring for the groove, resulting in leaks or extrusion.Verify the O-ring dimensions and groove specifications to ensure proper compatibility.

Common Applications

  • Hydraulic and pneumatic systems
  • Automotive fuel and oil systems
  • Industrial machinery and equipment seals

⚠️ Engineering Warnings

  • Not recommended for use with strong oxidizing agents, ketones, or esters.
  • Ensure operating temperatures remain within the specified limits for Buna-N and 304 stainless steel.

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 and pneumatic systems, Automotive fuel and oil systems, Industrial machinery and equipment seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.247"CS = 0.090"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.