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

Titanium Grade 5 Buna-N O-Ring | 1.5" ID x 8.9" OD x 0.178" CS

Expert Overview

Engineered for extreme conditions, this industrial O-ring utilizes the robust sealing capabilities of Buna-N enhanced by the exceptional strength and corrosion resistance of Titanium Grade 5. Ensures reliable sealing in critical applications.

StandardDIN 933
MaterialTitanium Grade 5
FinishZinc Plated
GradeN/A
Inside Diameter1.500"
Outside Diameter8.908"
Cross Section0.178"

Detailed Engineering Specifications

A proven choice for industrial professionals, this O-ring features a precise Inside Diameter of 1.500 inches, an Outside Diameter of 8.908 inches, and a Cross Section of 0.178 inches. Constructed from Buna-N (Nitrile Butadiene Rubber) for excellent resistance to oils, fuels, and many hydraulic fluids, and reinforced with a Titanium Grade 5 housing, it offers superior tensile strength, fatigue resistance, and remarkable corrosion resistance in aggressive chemical and high-temperature environments. Ideal for fluid power systems, chemical processing, and aerospace applications requiring robust, long-lasting seals.

🧊 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 the groove and mating surfaces for cleanliness and absence of damage. 2. Lightly lubricate the O-ring with a compatible lubricant. 3. Carefully install the O-ring into the designated groove, ensuring it is seated without twisting or stretching.

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

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 an incompatible lubricant that can degrade the Buna-N material.Always use lubricants specified as compatible with Buna-N and the application's operating conditions.
Forcing the O-ring into the groove, leading to cuts or nicks.Apply gentle, even pressure and use appropriate installation tools if necessary to avoid damaging the seal.

Common Applications

  • Hydraulic and Pneumatic Systems
  • Chemical Processing Equipment
  • Automotive and Aerospace Sealing

⚠️ Engineering Warnings

  • Ensure compatibility of the O-ring material (Buna-N) with the specific chemicals and temperatures of the application.
  • Avoid exposure to ozone, UV light, and weathering, 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 Titanium Grade 5.

Q: What are the main applications?

A: Hydraulic and Pneumatic Systems, Chemical Processing Equipment, Automotive and Aerospace Sealing.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 1.500"CS = 0.178"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.