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Buna-N Industrial O-Ring: 0.131" ID x 8.961" OD x 0.217" CS

Expert Overview

Engineered for superior sealing, this Buna-N industrial O-ring provides robust performance in challenging operational settings. Its precise dimensions ensure reliable containment of fluids and gases, preventing leaks and maintaining system integrity.

StandardASME B18
MaterialNylon
FinishPlain
GradeN/A
Inside Diameter0.131"
Outside Diameter8.961"
Cross Section0.217"

Detailed Engineering Specifications

Designed for demanding industrial environments, this Buna-N (Nitrile) O-ring exhibits excellent resistance to oils, fuels, hydraulic fluids, and many common chemicals, making it ideal for a wide range of sealing applications. With an inside diameter of 0.131 inches, an outside diameter of 8.961 inches, and a cross-section of 0.217 inches, this component is manufactured to stringent tolerances. Its inherent flexibility and resilience allow it to conform effectively to sealing surfaces, providing a dependable barrier against leakage under moderate pressure and temperature conditions.

🧊 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, free of debris, and smooth. 2. Carefully lubricate the O-ring and sealing groove with a compatible lubricant. 3. Gently install the O-ring, avoiding any stretching or twisting, ensuring it sits flush within the groove.

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
Overtightening the assembly, which can deform the O-ring and lead to premature failure.Tighten fasteners to the manufacturer's recommended torque specifications, ensuring proper compression without overstressing the O-ring.
Using incompatible lubricants or cleaning agents that degrade the Buna-N material.Consult material compatibility charts and use only lubricants and cleaning agents specifically approved for Buna-N applications.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Fuel and oil handling

⚠️ Engineering Warnings

  • Not recommended for use with strong oxidizing agents, ketones, or esters.
  • Avoid prolonged exposure to direct sunlight or ozone, which can degrade the 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 Nylon.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic equipment, Fuel and oil handling.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 0.131"CS = 0.217"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.