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Buna-N Brass O-Ring - 0.178" ID x 0.784" OD

Expert Overview

This industrial Buna-N O-ring, housed in a brass carrier, delivers exceptional sealing performance. Engineered for resilience and compatibility with a wide range of media.

StandardASTM A106
MaterialBrass
FinishZinc Plated
GradeN/A
Inside Diameter0.178"
Outside Diameter0.784"
Cross Section0.148"

Detailed Engineering Specifications

Built to exacting engineering tolerances, this Buna-N O-ring boasts an inside diameter of 0.178", an outside diameter of 0.784", and a cross-section of 0.148". The Buna-N (Nitrile) elastomer offers excellent resistance to petroleum-based oils, fuels, and hydraulic fluids, making it ideal for demanding industrial applications. The brass carrier provides robust structural support and corrosion resistance, ensuring longevity in challenging operational conditions. This precise construction guarantees a secure, leak-proof seal across a broad temperature range and pressure spectrum.

🧊 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 surfaces are clean, dry, and free from debris. 2. Carefully install the O-ring into the designated groove, avoiding stretching or twisting. 3. Apply a thin layer of compatible lubricant to the O-ring and groove if recommended for the specific application.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASTM A106

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
Overtightening or stretching the O-ring during installation.Install the O-ring without excessive force, allowing it to seat naturally in the groove.
Using incompatible lubricants or cleaning agents.Consult the material compatibility chart for Buna-N and the specific operating environment.

Common Applications

  • Hydraulic systems
  • Pneumatic fittings
  • Fuel and oil lines

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents, ozone, or UV exposure.
  • Verify material compatibility with the specific fluid or gas being sealed.

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 fittings, Fuel and oil lines.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 0.178"CS = 0.148"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.