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Buna-N Industrial O-Ring - 4.624" ID x 9.152" OD

Expert Overview

This robust Buna-N O-ring provides exceptional sealing performance in challenging industrial settings. Engineered for durability and reliability, it ensures leak-free operation across a wide range of applications.

StandardASME B18
MaterialPolycarbonate
FinishBlack Oxide
GradeN/A
Inside Diameter4.624"
Outside Diameter9.152"
Cross Section0.129"

Detailed Engineering Specifications

Designed for demanding industrial environments, this Buna-N O-ring features a precise inside diameter of 4.624 inches, an outside diameter of 9.152 inches, and a robust 0.129-inch cross-section. Constructed from nitrile butadiene rubber (Buna-N), it exhibits excellent resistance to oils, fuels, hydraulic fluids, and many common chemicals, making it suitable for applications where fluid compatibility is critical. Its material properties offer good abrasion resistance and a wide operating temperature range, ensuring consistent sealing integrity under pressure and varying environmental conditions. This O-ring is ideal for static and dynamic sealing in pumps, valves, cylinders, and machinery.

🧊 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:N/A

Installation Procedure

1. Ensure sealing surfaces are clean and free from debris. 2. Lightly lubricate the O-ring with a compatible lubricant. 3. Carefully install the O-ring into its groove, avoiding any stretching or twisting.

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

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
Using excessive force during installation, leading to cuts or tears.Apply steady, even pressure during installation, ensuring the O-ring seats properly without being forced.
Incorrect lubrication or using incompatible lubricants.Always use a lubricant recommended for Buna-N and the specific application environment to prevent material degradation.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Automotive fuel systems
  • Oil and gas exploration equipment

⚠️ Engineering Warnings

  • Not recommended for use with ozone, strong acids, or polar solvents.
  • Verify material compatibility with specific fluids and operating temperatures before use.

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 Polycarbonate.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic cylinders, Automotive fuel systems, Oil and gas exploration equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 4.624"CS = 0.129"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.