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Buna-N Carbon Steel O-Ring | 5.445" ID | Industrial Sealing

Expert Overview

This industrial O-ring, constructed from Buna-N with a durable carbon steel core, offers exceptional sealing performance. Its precise dimensions ensure a reliable fit in critical fluid and gas systems.

StandardASTM A106
MaterialCarbon Steel
FinishGalvanized
GradeN/A
Inside Diameter5.445"
Outside Diameter7.943"
Cross Section0.155"

Detailed Engineering Specifications

Specified by design engineers worldwide, this Buna-N O-ring, reinforced with a carbon steel core, provides robust sealing capabilities in demanding industrial environments. The material offers excellent resistance to petroleum-based oils, hydraulic fluids, and certain solvents, making it ideal for a wide range of applications. Its precise dimensions of 5.445" inside diameter, 7.943" outside diameter, and a 0.155" cross-section ensure a precise fit and effective sealing under pressure. The carbon steel core enhances structural integrity and dimensional stability under thermal cycling and mechanical stress.

🧊 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, dry, and free from debris. 2. Carefully inspect the O-ring for any signs of damage before installation. 3. Gently compress and install the O-ring into the groove, avoiding excessive stretching or twisting.

Equivalent Standards (Cross-Reference)

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

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
Installing on a dirty or damaged groove.Thoroughly clean and inspect the sealing groove for any imperfections before inserting the O-ring.
Over-stretching or twisting the O-ring during installation.Handle the O-ring with care, ensuring it is seated properly without undue deformation.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Automotive components
  • Oil and gas exploration

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents or ozone.
  • Operating temperature range should not exceed material specifications for optimal lifespan.

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 systems, Pneumatic equipment, Automotive components, Oil and gas exploration.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 5.445"CS = 0.155"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.