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Industrial O-Ring, Buna-N, Carbon Steel - 7.344" ID

Expert Overview

This industrial O-ring, constructed with a durable Buna-N elastomer over a carbon steel core, offers exceptional sealing performance. Its robust design ensures integrity in high-pressure and demanding applications.

StandardASME B18
MaterialCarbon Steel
FinishPlain
GradeN/A
Inside Diameter7.344"
Outside Diameter5.538"
Cross Section0.233"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this industrial O-ring features a precise Inside Diameter of 7.344 inches, an Outside Diameter of 5.538 inches, and a Cross Section of 0.233 inches. The Buna-N (Nitrile) material provides excellent resistance to oils, fuels, and many hydraulic fluids, making it suitable for a wide range of dynamic and static sealing applications. The integrated carbon steel core enhances structural integrity and dimensional stability under significant mechanical stress and temperature fluctuations, ensuring long-term reliability 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 groove surfaces are clean, dry, and free of any debris or sharp edges. 2. Carefully inspect the O-ring for any nicks, cuts, or defects before installation. 3. Lubricate the O-ring and groove lightly with a compatible lubricant to facilitate installation and prevent damage.

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

Chemical Composition

Carbon (C)0.28 - 0.55%
Manganese (Mn)0.60 - 0.90%
Phosphorus (P)0.04% max
Sulfur (S)0.05% max

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
Incorrect O-ring size selection leading to leakage or gland damage.Always verify the required O-ring dimensions against the gland design specifications before ordering.
Overtightening during installation, causing extrusion or premature failure.Install the O-ring with appropriate tension, avoiding excessive stretching or compression.

Common Applications

  • Hydraulic cylinder seals
  • Pneumatic systems
  • Automotive fluid handling

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents or certain chlorinated solvents.
  • Continuous exposure to UV radiation or ozone may degrade Buna-N material over time.

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 Carbon Steel.

Q: What are the main applications?

A: Hydraulic cylinder seals, Pneumatic systems, Automotive fluid handling.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.344"CS = 0.233"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.