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

Industrial Buna-N O-Ring | 9.255" ID | 2.522" OD | Nylon

Expert Overview

This industrial O-ring, constructed from durable Buna-N, offers superior sealing performance in challenging operational conditions. Its precise dimensions ensure a reliable fit for critical sealing applications.

StandardASME B18
MaterialNylon
FinishBlack Oxide
GradeN/A
Inside Diameter9.255"
Outside Diameter2.522"
Cross Section0.167"

Detailed Engineering Specifications

Designed for demanding industrial environments, this Buna-N O-ring features an inside diameter of 9.255 inches and an outside diameter of 2.522 inches, with a robust 0.167-inch cross-section. The Buna-N (Nitrile) material provides excellent resistance to oils, fuels, and many hydraulic fluids, making it suitable for applications requiring dependable static and dynamic sealing. Its inherent resilience and good temperature range (-40°F to +257°F) contribute to its longevity and effectiveness in a wide array of industrial machinery and equipment.

🧊 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 sealing groove is clean and free of debris. 2. Carefully stretch the O-ring over the component, avoiding excessive force or sharp tools. 3. Gently seat the O-ring into its designated groove, ensuring it is not twisted or pinched.

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 nicks or tears in the O-ring.Employ a lubricant compatible with Buna-N and use appropriate installation tools to avoid damaging the seal.
Installing a twisted O-ring, which compromises sealing integrity.Verify the O-ring is seated flat within its groove and is not exhibiting any signs of twisting.

Common Applications

  • Hydraulic Systems
  • Pneumatic Actuators
  • Fluid Power Transmissions

⚠️ Engineering Warnings

  • Not suitable for exposure to ozone, strong acids, or polar solvents.
  • Verify material compatibility with specific media 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 Nylon.

Q: What are the main applications?

A: Hydraulic Systems, Pneumatic Actuators, Fluid Power Transmissions.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 9.255"CS = 0.167"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.