Home > Sealing > Industrial O-Ring, Silicone

Industrial Silicone O-Ring | 7.438" ID x 7.518" OD x 0.253" CS

Expert Overview

This industrial-grade Silicone O-ring, reinforced with Nylon, offers superior sealing capabilities in demanding environments. Its precise dimensions ensure a leak-proof fit for critical fluid and gas containment systems.

StandardISO 9001
MaterialNylon
FinishAnodized
GradeN/A
Inside Diameter7.438"
Outside Diameter7.518"
Cross Section0.253"

Detailed Engineering Specifications

Engineered for reliability and performance, this Silicone O-ring features an Inside Diameter of 7.438 inches, an Outside Diameter of 7.518 inches, and a robust 0.253-inch cross-section. The nylon reinforcement enhances its mechanical strength and resistance to extrusion under high pressure, while the silicone material provides excellent flexibility and a wide operating temperature range from -60°C to +200°C. This combination makes it suitable for applications requiring resistance to a broad spectrum of chemicals, oils, and solvents, ensuring long-term seal integrity.

🧊 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, dry, and free of debris. 2. Carefully stretch the O-ring over the component, avoiding sharp edges or excessive force. 3. Gently seat the O-ring into the groove, ensuring it is properly aligned and not twisted.

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
Overtightening fasteners, which can cause O-ring extrusion and premature failure.Apply torque specifications as recommended for the assembly to avoid over-compression.
Using lubricants incompatible with silicone O-rings, leading to material degradation.Consult the material compatibility chart and use only approved silicone-based lubricants.

Common Applications

  • Automotive Fuel Systems
  • Aerospace Fluid Connectors
  • Industrial Hydraulic and Pneumatic Systems

⚠️ Engineering Warnings

  • Avoid exposure to high concentrations of steam or certain aggressive solvents, which can degrade silicone.
  • Ensure proper groove design and surface finish to maximize O-ring lifespan and sealing effectiveness.

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, Silicone made from?

A: This Industrial O-Ring, Silicone is manufactured from Nylon.

Q: What are the main applications?

A: Automotive Fuel Systems, Aerospace Fluid Connectors, Industrial Hydraulic and Pneumatic Systems.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.438"CS = 0.253"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.