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Buna-N Brass O-Ring 7.929" ID x 0.533" OD x 0.083" CS

Expert Overview

This high-performance Buna-N O-ring, housed within a brass fitting, offers robust sealing in challenging industrial environments. Engineered for reliability, it ensures leak-free operation in critical fluid and gas systems.

StandardASME B18
MaterialBrass
FinishZinc Plated
GradeN/A
Inside Diameter7.929"
Outside Diameter0.533"
Cross Section0.083"

Detailed Engineering Specifications

A high-performance industrial component, this Buna-N O-ring is meticulously manufactured to precise specifications, featuring an inside diameter of 7.929 inches, an outside diameter of 0.533 inches, and a cross-section of 0.083 inches. The Buna-N (Nitrile) material provides excellent resistance to oils, fuels, and many hydraulic fluids, while the brass housing ensures compatibility and integrity in specific chemical environments. Its robust design makes it suitable for applications requiring dependable static and dynamic sealing under moderate pressure and temperature ranges.

🧊 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 both the O-ring and the groove for any damage or debris. 2. Lightly lubricate the O-ring with a compatible lubricant. 3. Carefully insert the O-ring into the designated groove, ensuring it sits flush and 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

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
Using the wrong lubricant.Always use a lubricant compatible with both Buna-N and the system's fluid to prevent material degradation.
Overtightening fasteners.Overtightening can deform the O-ring and groove, leading to leaks. Follow specified torque values.
Installing a damaged O-ring.Always visually inspect the O-ring for nicks, cuts, or excessive wear before installation.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Fluid power transmission

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications or exposure to ozone, UV, or weathering.
  • Ensure compatibility of Buna-N with all system fluids and chemicals.

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, Fluid power transmission.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.929"CS = 0.083"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.