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

Industrial Buna-N O-Ring | Carbon Steel | 5.411" ID x 4.614" OD

Expert Overview

This industrial O-ring, constructed from robust Buna-N and featuring a carbon steel composition, is engineered for superior sealing performance in challenging operational settings. Its precise dimensions ensure a secure and reliable fit.

StandardASME B18
MaterialCarbon Steel
FinishBlack Oxide
GradeN/A
Inside Diameter5.411"
Outside Diameter4.614"
Cross Section0.123"

Detailed Engineering Specifications

Designed for demanding industrial environments, this Buna-N O-ring offers exceptional resistance to oils, fuels, and hydraulic fluids. The material's inherent toughness, combined with the precise dimensions of a 5.411" inside diameter, 4.614" outside diameter, and 0.123" cross-section, ensures a tight seal against moderate pressures and temperatures. Its carbon steel construction provides structural integrity and corrosion resistance in many industrial fluid systems. Ideal for static and dynamic sealing applications where chemical compatibility and durability are paramount.

🧊 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 mating groove is clean, free of debris, and properly dimensioned according to specifications. 2. Lightly lubricate the O-ring with a compatible lubricant, such as silicone grease or petroleum jelly, to facilitate installation and prevent tearing. 3. Carefully place the O-ring into the groove, ensuring it is seated evenly and without twisting. Avoid using sharp tools that could damage the sealing surface.

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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Overtightening fasteners, which can crush the O-ring and lead to premature failure.Tighten fasteners to the manufacturer's recommended torque specifications to ensure proper compression without overstressing the O-ring.
Using incompatible lubricants that can degrade the Buna-N material.Consult material compatibility charts to select a lubricant specifically recommended for Buna-N and the operating environment.

Common Applications

  • Hydraulic systems
  • Pneumatic systems
  • Automotive and aerospace seals
  • General industrial fluid handling

⚠️ Engineering Warnings

  • Not suitable for applications involving high temperatures above the recommended operating range for Buna-N.
  • Avoid exposure to strong oxidizing agents, ketones, and esters, which can degrade Buna-N material.

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 systems, Automotive and aerospace seals, General industrial fluid handling.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 5.411"CS = 0.123"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.