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

Buna-N O-Ring | 8.522" ID x 1.106" OD | Industrial Sealing

Expert Overview

This robust industrial O-ring, crafted from resilient Buna-N, ensures reliable sealing in demanding environments. Its precise dimensions guarantee a secure fit and long-lasting performance.

StandardASME B18
MaterialPolycarbonate
FinishBlack Oxide
GradeN/A
Inside Diameter8.522"
Outside Diameter1.106"
Cross Section0.171"

Detailed Engineering Specifications

Manufactured under strict quality controls, this industrial O-ring features an inside diameter of 8.522 inches, an outside diameter of 1.106 inches, and a 0.171-inch cross-section. Constructed from Buna-N (Nitrile Butadiene Rubber), it offers exceptional resistance to petroleum-based oils, fuels, greases, and hydraulic fluids. This material also exhibits good abrasion resistance and a wide operating temperature range, making it suitable for static and dynamic sealing applications in hydraulics, pneumatics, automotive, and general industrial machinery where chemical compatibility is paramount.

🧊 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 from debris. 2. Carefully lubricate the O-ring with a compatible lubricant if necessary. 3. Gently stretch and place the O-ring into the groove, ensuring it is not twisted.

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 cuts.Apply lubricant and use appropriate tools to ease installation, avoiding pinching or tearing.
Selecting an O-ring material incompatible with the fluid or environment.Always verify the chemical compatibility of Buna-N with the specific application's fluids and operating conditions.

Common Applications

  • Hydraulic Systems
  • Pneumatic Cylinders
  • Fuel and Oil Lines

⚠️ Engineering Warnings

  • Not suitable for use with ozone, esters, ketones, or polar solvents.
  • Operating temperature limits of Buna-N should be observed for optimal performance.

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, Fuel and Oil Lines.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 8.522"CS = 0.171"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.