Home > Sealing > Industrial O-Ring, Buna-N

Buna-N Carbon Steel O-Ring | 0.797" ID x 1.806" OD

Expert Overview

This industrial O-ring, constructed from robust Buna-N material within a carbon steel housing, provides exceptional sealing capabilities. Engineered for durability and precise fit, it ensures reliable performance in a wide range of applications.

StandardASTM A106
MaterialCarbon Steel
FinishPassivated
GradeN/A
Inside Diameter0.797"
Outside Diameter1.806"
Cross Section0.188"

Detailed Engineering Specifications

Engineered for reliability and performance, this industrial O-ring features a precise inside diameter of 0.797 inches, an outside diameter of 1.806 inches, and a cross-section of 0.188 inches. The Buna-N (Nitrile) elastomer offers excellent resistance to oils, fuels, hydraulic fluids, and many other chemicals, making it ideal for demanding environments. The carbon steel housing provides structural integrity and enhances resistance to crushing and extrusion under high pressure. This combination ensures a secure and long-lasting seal in critical fluid power and mechanical 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 sealing surfaces are clean, dry, and free of debris. 2. Carefully place the O-ring into its designated groove, avoiding stretching or twisting. 3. Gently compress the O-ring into the groove, ensuring it is seated evenly on all sides.

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
Overtightening fastenersApply appropriate torque specifications to avoid crushing the O-ring and compromising the seal.
Using incorrect O-ring sizeVerify that the O-ring's dimensions precisely match the groove specifications before installation.
Contaminating sealing surfacesThoroughly clean both the O-ring and the groove to remove any dirt, dust, or lubricant residues.

Common Applications

  • Hydraulic Systems
  • Pneumatic Cylinders
  • Fuel Systems
  • Oil Seals
  • General Industrial Sealing

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications exceeding Buna-N's thermal limits.
  • Avoid exposure to ozone, UV light, or strong oxidizing agents, which can degrade Buna-N.
  • Ensure compatibility with the specific fluid or chemical being sealed.

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 Systems, Oil Seals, General Industrial Sealing.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 0.797"CS = 0.188"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.