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

Industrial Buna-N O-Ring | 9.094" ID x 3.875" OD x 0.275" CS

Expert Overview

This industrial-grade Buna-N O-ring offers exceptional sealing performance in demanding environments. Engineered with a precise 9.094" inside diameter, 3.875" outside diameter, and 0.275" cross-section, it ensures reliable containment.

StandardISO 9001
MaterialAluminum 6061
FinishPlain
GradeN/A
Inside Diameter9.094"
Outside Diameter3.875"
Cross Section0.275"

Detailed Engineering Specifications

A proven choice for industrial professionals, this Buna-N O-ring is meticulously crafted to meet stringent performance requirements. Its material composition, Buna-N (Nitrile Butadiene Rubber), provides excellent resistance to oils, fuels, hydraulic fluids, and many chemicals, making it suitable for a wide range of applications. The precise dimensions of 9.094" inside diameter, 3.875" outside diameter, and a 0.275" cross-section ensure a tight and secure seal within its intended housing. This O-ring is designed for static and dynamic sealing applications where durability and chemical compatibility are 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 groove and mating surfaces are clean, dry, and free from debris. 2. Carefully lubricate the O-ring and groove with a compatible lubricant (e.g., silicone grease or mineral oil). 3. Gently install the O-ring into the groove, avoiding any twisting or stretching that could damage its cross-section.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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 during installation, leading to compression set and premature failure.Install the O-ring with appropriate pressure, ensuring it fits snugly without excessive force.
Using incompatible lubricants that can degrade the Buna-N material.Always consult the material compatibility chart for recommended lubricants suitable for Buna-N.

Common Applications

  • Hydraulic systems
  • Pneumatic systems
  • Automotive engines
  • Chemical processing equipment
  • Oil and gas industry

⚠️ Engineering Warnings

  • Not suitable for use with ozone, esters, ketones, or highly polar solvents.
  • Operating temperature range limitations should be observed to maintain seal integrity.

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 Aluminum 6061.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic systems, Automotive engines, Chemical processing equipment, Oil and gas industry.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 9.094"CS = 0.275"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.