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Industrial O-Ring, Buna-N, Carbon Steel - 7.288" ID

Expert Overview

This industrial O-ring, constructed from robust Buna-N material with a carbon steel core, ensures reliable sealing in high-pressure and demanding applications. Precisely engineered for leak prevention and extended service life.

StandardASME B18
MaterialCarbon Steel
FinishZinc Plated
GradeN/A
Inside Diameter7.288"
Outside Diameter1.602"
Cross Section0.118"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this Buna-N O-ring boasts an Inside Diameter of 7.288 inches, an Outside Diameter of 1.602 inches, and a Cross Section of 0.118 inches. The Buna-N (Nitrile Rubber) material offers excellent resistance to oils, fuels, and many hydraulic fluids, making it suitable for a wide range of industrial fluid power systems. The integrated carbon steel element provides structural integrity and enhanced resistance to extrusion under pressure. This combination ensures dependable sealing performance in static and dynamic applications where chemical compatibility and mechanical strength are critical.

🧊 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. Inspect the groove and mating surfaces for cleanliness and damage. Ensure no foreign particles are present. 2. Lightly lubricate the O-ring with a compatible lubricant to facilitate installation and prevent tearing. 3. Carefully install the O-ring into the designated groove, ensuring it is seated evenly without twisting or stretching excessively.

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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using incorrect lubricant, leading to material degradation.Always use a lubricant specifically recommended for Buna-N and the application environment.
Overstretching or twisting the O-ring during installation, causing premature failure.Handle the O-ring gently and ensure it is installed without undue stress.
Installing into a dirty or damaged groove, compromising the seal.Thoroughly clean and inspect the groove before O-ring installation.

Common Applications

  • Hydraulic Cylinders
  • Pneumatic Systems
  • Fluid Power Manifolds
  • Automotive Seals
  • Industrial Machinery

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents, ketones, or esters.
  • Ensure operating temperatures remain within the recommended range for Buna-N to prevent degradation.

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 Cylinders, Pneumatic Systems, Fluid Power Manifolds, Automotive Seals, Industrial Machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.288"CS = 0.118"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.