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Industrial O-Ring, Buna-N, 5.642" ID, 0.787" OD, Carbon Steel

Expert Overview

This industrial O-ring, crafted from Buna-N material with a carbon steel core, offers exceptional resilience and durability. Engineered for precise sealing in high-pressure and corrosive environments.

StandardASTM A106
MaterialCarbon Steel
FinishZinc Plated
GradeN/A
Inside Diameter5.642"
Outside Diameter0.787"
Cross Section0.102"

Detailed Engineering Specifications

A proven choice for industrial professionals, this Buna-N O-ring boasts a precise inside diameter of 5.642 inches and an outside diameter of 0.787 inches, with a cross-section measuring 0.102 inches. The carbon steel construction provides superior tensile strength and resistance to deformation under load, making it ideal for dynamic and static sealing applications. Buna-N (Nitrile Butadiene Rubber) offers excellent resistance to oils, fuels, and many hydraulic fluids, ensuring long-term performance in demanding industrial settings.

🧊 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. Clean mating surfaces thoroughly to remove debris and old sealant. 2. Lightly lubricate the O-ring with a compatible lubricant to prevent damage during installation. 3. Carefully install the O-ring into its designated groove, ensuring it is seated evenly and without 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
Using incompatible lubricants that can degrade Buna-N material.Always use lubricants specifically recommended for Buna-N seals, such as silicone-based or petroleum jelly, and ensure they are rated for the operating environment.
Twisting or stretching the O-ring during installation, leading to premature failure.Install the O-ring with a gentle, rolling motion into its groove, avoiding any undue stretching or twisting. Ensure proper alignment before seating.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Automotive fuel systems
  • Industrial pumps and valves

⚠️ Engineering Warnings

  • Not suitable for use with ozone, UV, or weathering, which can degrade Buna-N.
  • Avoid exposure to strong acids, ketones, esters, and chlorinated hydrocarbons, as these can cause significant material swelling.

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 cylinders, Automotive fuel systems, Industrial pumps and valves.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 5.642"CS = 0.102"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.