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Industrial Buna-N O-Ring - Carbon Steel, 4.898" ID

Expert Overview

Engineered for robust sealing, this Industrial O-Ring features a Buna-N elastomer housed within a durable Carbon Steel construction. Its precise dimensions ensure reliable performance in critical industrial applications requiring superior chemical and abrasion resistance.

StandardDIN 933
MaterialCarbon Steel
FinishPassivated
GradeN/A
Inside Diameter4.898"
Outside Diameter9.688"
Cross Section0.265"

Detailed Engineering Specifications

A proven choice for industrial professionals, this Buna-N O-ring boasts an Inside Diameter of 4.898 inches, an Outside Diameter of 9.688 inches, and a Cross Section of 0.265 inches. The Buna-N (Nitrile) material offers excellent resistance to oils, fuels, hydraulic fluids, and greases, making it suitable for a wide range of industrial environments. The integrated Carbon Steel housing provides enhanced structural integrity and resistance to compression set, ensuring long-term sealing effectiveness in demanding applications.

🧊 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 surfaces are clean, dry, and free of debris. 2. Carefully position the O-ring within the designated groove, avoiding any stretching or twisting. 3. Apply a light coating of compatible lubricant to aid installation and prevent damage.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

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 the assembly, which can crush the O-ring.Adhere to recommended torque specifications for the fastening components.
Using incompatible lubricants or cleaning agents that degrade Buna-N.Consult the material compatibility chart for Buna-N and select approved lubricants and cleaners.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Automotive seals
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications or exposure to strong oxidizing agents.
  • Ensure proper material compatibility before use in specific chemical environments.

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 seals, Chemical processing equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 4.898"CS = 0.265"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.