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Industrial Buna-N O-Ring | 2.875" ID | Aluminum 6061

Expert Overview

This industrial O-ring, constructed from robust Buna-N material and featuring a durable Aluminum 6061 housing, is engineered for superior sealing performance in challenging operational settings.

StandardISO 9001
MaterialAluminum 6061
FinishAnodized
GradeN/A
Inside Diameter2.875"
Outside Diameter3.293"
Cross Section0.198"

Detailed Engineering Specifications

Designed for demanding industrial environments, this O-ring boasts a precise inside diameter of 2.875 inches, an outside diameter of 3.293 inches, and a cross-section of 0.198 inches. The Buna-N elastomer provides excellent resistance to oils, fuels, and many hydraulic fluids, making it ideal for applications where chemical compatibility is critical. The Aluminum 6061 housing offers good strength and corrosion resistance. This combination ensures reliable sealing under pressure and temperature fluctuations common in manufacturing, automotive, and aerospace industries.

🧊 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. Inspect the groove and mating surfaces for cleanliness and damage. 2. Carefully place the O-ring into the designated groove, ensuring it is seated evenly. 3. Apply light lubrication compatible with Buna-N if necessary to facilitate assembly without tearing.

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
Overstretching the O-ring during installation.Handle the O-ring with care and avoid excessive stretching. Use appropriate tools if needed to gently guide it into place.
Incorrect O-ring size for the groove.Always verify the O-ring dimensions (ID, OD, CS) against the groove specifications to ensure a proper fit and seal.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Fluid power equipment
  • Automotive seals

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications exceeding Buna-N's service limits.
  • Avoid exposure to strong acids, ketones, esters, and chlorinated solvents, which can degrade Buna-N.

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 cylinders, Fluid power equipment, Automotive seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.875"CS = 0.198"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.