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

Buna-N O-Ring | 7.158" ID x 2.078" OD x 0.100" CS | Polycarbonate

Expert Overview

This industrial Buna-N O-ring, constructed from high-grade Polycarbonate, ensures superior sealing performance. Engineered for precise fits, it offers excellent resistance to common industrial fluids and pressure.

StandardASTM A106
MaterialPolycarbonate
FinishGalvanized
GradeN/A
Inside Diameter7.158"
Outside Diameter2.078"
Cross Section0.100"

Detailed Engineering Specifications

Engineered for reliability and performance, this industrial O-ring features an Inside Diameter of 7.158 inches, an Outside Diameter of 2.078 inches, and a precise Cross Section of 0.100 inches. Fabricated from robust Buna-N (Nitrile Butadiene Rubber), it exhibits exceptional resistance to oils, fuels, hydraulic fluids, and general chemicals, making it suitable for a wide range of demanding industrial environments. The material's inherent durability and flexibility allow it to maintain a tight seal under varying temperature and pressure conditions, minimizing leakage and downtime.

🧊 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 burrs or contaminants. 2. Carefully lubricate the O-ring and the groove with a compatible lubricant to prevent tearing during installation. 3. Gently insert the O-ring into the groove, ensuring it is seated evenly and without twisting.

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

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 excessive force during installation, leading to O-ring nicks or tears.Apply a suitable lubricant and utilize a non-marring installation tool if necessary, applying gentle, even pressure.
Installing on contaminated or damaged groove surfaces.Thoroughly clean and inspect the groove for any defects before commencing installation.

Common Applications

  • Hydraulic and pneumatic systems
  • Automotive fluid systems
  • Industrial machinery seals

⚠️ Engineering Warnings

  • Verify material compatibility with the specific fluid and operating temperature before use.
  • Avoid exposure to ozone, UV light, or strong oxidizing agents, as these 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 Polycarbonate.

Q: What are the main applications?

A: Hydraulic and pneumatic systems, Automotive fluid systems, Industrial machinery seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.158"CS = 0.100"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.