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Industrial O-Ring Buna-N 304 Stainless Steel 4.97" ID

Expert Overview

Engineered for robust sealing in challenging environments, this Buna-N O-ring features a 304 stainless steel casing for superior corrosion resistance and chemical compatibility. Delivering reliable performance in demanding industrial applications.

StandardISO 9001
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Diameter4.970"
Outside Diameter8.117"
Cross Section0.083"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this industrial O-ring boasts a precise 4.970" inside diameter, an 8.117" outside diameter, and a 0.083" cross-section. The Buna-N elastomer offers excellent resistance to oils, fuels, and hydraulic fluids, while the 304 stainless steel casing provides exceptional durability, corrosion resistance, and structural integrity under pressure and varying temperatures. This combination ensures long-term sealing performance in aggressive chemical and mechanical 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:Yes

Installation Procedure

1. Ensure the mating groove surfaces are clean, free of debris, and properly lubricated with a compatible lubricant. 2. Carefully position the O-ring into the groove, avoiding any stretching or twisting. 3. Assemble mating components ensuring the O-ring is not pinched or abraded during closure.

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
Overtightening fasteners, leading to excessive compression and premature failure of the O-ring.Adhere to recommended torque specifications for fasteners to ensure proper sealing pressure without over-compression.
Using incompatible lubricants, which can degrade the Buna-N material or compromise sealing.Always consult compatibility charts and use lubricants specifically recommended for Buna-N and the application's operating conditions.
Allowing the O-ring to be stretched or twisted during installation, resulting in uneven sealing and potential leaks.Install the O-ring gently, ensuring it seats squarely in the groove without any distortion.

Common Applications

  • Hydraulic and pneumatic systems
  • Chemical processing equipment
  • Automotive and aerospace fluid systems

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents or ketones.
  • Operating temperature range must be strictly adhered to for optimal performance and longevity.

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, Chemical processing equipment, Automotive and aerospace fluid systems.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 4.970"CS = 0.083"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.