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

Buna-N O-Ring | 0.354" ID x 9.153" OD x 0.208" CS | Industrial Seal

Expert Overview

This industrial O-ring, crafted from robust Buna-N, ensures reliable sealing in demanding environments. Its precise dimensions provide a secure fit, preventing leaks and maintaining system integrity.

StandardASTM A106
MaterialPolycarbonate
FinishZinc Plated
GradeN/A
Inside Diameter0.354"
Outside Diameter9.153"
Cross Section0.208"

Detailed Engineering Specifications

Manufactured under strict quality controls, this Buna-N O-ring boasts an Inside Diameter (ID) of 0.354 inches, an Outside Diameter (OD) of 9.153 inches, and a Cross Section (CS) of 0.208 inches. Buna-N, also known as Nitrile, offers excellent resistance to oils, fuels, hydraulic fluids, and water, making it a versatile choice for a wide range of industrial applications. Its moderate temperature range and good abrasion resistance further enhance its suitability for dynamic and static sealing functions.

🧊 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 the mating groove is clean and free of debris. 2. Lubricate the O-ring and groove lightly with a compatible lubricant if recommended for the application. 3. Carefully install the O-ring into the groove, avoiding stretching or twisting.

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

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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Overstretching the O-ring during installation, leading to premature failure.Gently ease the O-ring into the groove, using minimal force and avoiding excessive elongation.
Using an incompatible lubricant that can degrade the Buna-N material.Consult the O-ring manufacturer's recommendations or a chemical compatibility chart for appropriate lubricants.

Common Applications

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

⚠️ Engineering Warnings

  • Not recommended for use with ketones, esters, or aromatic hydrocarbons.
  • Performance may be limited at extremely high or low temperatures outside the typical Buna-N range.

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 systems, Automotive seals, Chemical processing equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 0.354"CS = 0.208"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.