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Industrial Buna-N O-Ring - 6.829" ID x 1.967" OD

Expert Overview

This industrial O-ring, constructed from robust Buna-N material and housed in carbon steel, is engineered for exceptional sealing performance in demanding environments. Its precise dimensions ensure reliable containment of fluids and gases.

StandardASTM A106
MaterialCarbon Steel
FinishPlain
GradeN/A
Inside Diameter6.829"
Outside Diameter1.967"
Cross Section0.273"

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this Buna-N O-ring features an Inside Diameter of 6.829 inches, an Outside Diameter of 1.967 inches, and a Cross Section of 0.273 inches. Buna-N (Nitrile Butadiene Rubber) offers excellent resistance to petroleum-based oils, fuels, hydraulic fluids, and many common industrial chemicals, making it ideal for applications in the automotive, aerospace, and general industrial sectors. The carbon steel housing provides structural integrity and enhanced durability under high pressure and temperature conditions, ensuring a leak-free seal 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 sealing groove is clean, dry, and free from burrs or debris. 2. Carefully inspect the O-ring for any signs of damage or defects. 3. Gently install the O-ring into the groove, ensuring it is seated properly without twisting or stretching excessively.

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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Overstretching the O-ring during installation.Install the O-ring by working it into the groove systematically, avoiding any significant stretching.
Installing into a dirty or damaged groove.Thoroughly clean and inspect the groove for any imperfections before O-ring installation.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Fuel and oil transfer lines

⚠️ Engineering Warnings

  • Not recommended for use with ozone, ketones, esters, or certain chlorinated hydrocarbons.
  • Ensure compatibility of the O-ring material with the specific media and operating temperatures.

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, Fuel and oil transfer lines.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.829"CS = 0.273"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.