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Industrial O-Ring, Buna-N, Stainless Steel, 7.434" ID x 4.058" OD

Expert Overview

This industrial O-ring features a durable Buna-N sealing element integrated within a robust 304 stainless steel housing. Engineered for demanding environments, it provides superior sealing against a wide range of fluids and pressures.

StandardASTM A106
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Diameter7.434"
Outside Diameter4.058"
Cross Section0.150"

Detailed Engineering Specifications

Engineered for reliability and performance, this industrial O-ring boasts an Inside Diameter of 7.434 inches, an Outside Diameter of 4.058 inches, and a precise 0.150-inch cross-section. The Buna-N (Nitrile Butadiene Rubber) compound offers excellent resistance to oils, fuels, and many hydraulic fluids, operating effectively across a broad temperature range. The 304 stainless steel housing provides exceptional corrosion resistance and mechanical strength, making it suitable for high-pressure and aggressive chemical applications. This combination ensures a secure and long-lasting seal in critical industrial 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 groove is clean, free of debris, and properly dimensioned. 2. Carefully lubricate the O-ring and the groove with a compatible lubricant to prevent damage during installation. 3. Gently insert the O-ring into the groove, avoiding stretching or twisting, ensuring it sits evenly and without distortion.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASTM A106

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
Overstretching the O-ring during installation.Lubricate the O-ring and groove, and install without excessive tension or twisting.
Installing into a dirty or damaged groove.Thoroughly clean and inspect the groove for any imperfections or foreign matter before installation.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Chemical processing machinery
  • Automotive and aerospace components

⚠️ Engineering Warnings

  • Verify chemical compatibility of Buna-N with the specific media being sealed.
  • Avoid exposure to ozone, strong acids, and esters, which can degrade Buna-N.

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 machinery, Automotive and aerospace components.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.434"CS = 0.150"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.