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Industrial Buna-N O-Ring, Brass, 6.893" ID

Expert Overview

This industrial-grade O-ring, constructed from durable Buna-N, ensures reliable sealing in demanding environments. Its precise dimensions offer a secure fit for critical applications requiring robust fluid containment.

StandardDIN 933
MaterialBrass
FinishZinc Plated
GradeN/A
Inside Diameter6.893"
Outside Diameter6.801"
Cross Section0.233"

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this Buna-N O-ring offers exceptional resistance to oils, fuels, and hydraulic fluids, making it ideal for chemical processing, automotive, and manufacturing sectors. The precisely manufactured dimensions, with an inside diameter of 6.893 inches, an outside diameter of 6.801 inches, and a cross-section of 0.233 inches, ensure a tight and effective seal. The brass material for the housing or mating surface provides excellent corrosion resistance and mechanical strength, complementing the elastomer's performance in harsh operating 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 the sealing groove is clean and free from debris. 2. Carefully lubricate the O-ring with a compatible lubricant. 3. Install the O-ring into the groove, ensuring it is seated properly without twisting.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

Mechanical Properties

Tensile StrengthStandard Commercial Spec
Yield StrengthStandard Commercial Spec
HardnessVaries by specific batch

Chemical Composition

Copper (Cu)60.0 - 63.0%
Zinc (Zn)Balance
Lead (Pb)2.5 - 3.7%

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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Installing a dry O-ring, leading to tearing or damage during insertion.Always lubricate the O-ring with a compatible lubricant before installation to reduce friction and prevent damage.
Forcing the O-ring into a tight groove, causing it to roll or become pinched.Gently stretch and place the O-ring into the groove, ensuring it sits flat and is not twisted or kinked.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Fuel and oil handling

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications exceeding Buna-N's thermal limits.
  • Avoid exposure to strong oxidizing agents, ketones, and esters, 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 Brass.

Q: What are the main applications?

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

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.893"CS = 0.233"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.