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Buna-N Industrial O-Ring | 316 Stainless Steel | 8.868" ID

Expert Overview

This industrial O-ring features a Buna-N elastomer seal within a robust 316 stainless steel housing. Engineered for superior performance and chemical resistance, it provides a reliable seal in critical fluid power systems.

StandardASTM A106
Material316 Stainless Steel
FinishGalvanized
GradeN/A
Inside Diameter8.868"
Outside Diameter5.642"
Cross Section0.113"

Detailed Engineering Specifications

Built to exacting engineering tolerances, this Buna-N O-ring boasts an inside diameter of 8.868 inches, an outside diameter of 5.642 inches, and a cross-section of 0.113 inches. The 316 stainless steel housing offers exceptional corrosion resistance, making it ideal for applications involving aggressive chemicals, saltwater, and high temperatures. Buna-N (Nitrile Butadiene Rubber) is selected for its excellent resistance to oils, fuels, and many common industrial fluids, ensuring long-term sealing integrity under demanding operational conditions. This combination of materials ensures compatibility with a wide range of media and environments.

🧊 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:Yes

Installation Procedure

1. Ensure mating surfaces are clean and free of debris. 2. Carefully place the O-ring into the designated groove, avoiding overstretching. 3. Compress the O-ring evenly to achieve a proper seal, verifying fit and function.

Equivalent Standards (Cross-Reference)

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

Mechanical Properties

Tensile Strength75,000 psi (515 MPa)
Yield Strength30,000 psi (205 MPa)
Elongation in 2 in.40% min
HardnessRockwell B95 max

Chemical Composition

Carbon (C)0.08% max
Chromium (Cr)16.0 - 18.0%
Nickel (Ni)10.0 - 14.0%
Molybdenum (Mo)2.0 - 3.0%

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1500°F (815°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 / SaltwaterExcellent
Chemical / AcidicGood

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Overstretching the O-ring during installation.Gently maneuver the O-ring into the groove without excessive pulling or distortion.
Using the wrong O-ring material for the specific fluid or temperature.Verify material compatibility (Buna-N and 316 Stainless Steel) against the application's chemical and thermal requirements before selection.

Common Applications

  • Hydraulic and pneumatic systems
  • Chemical processing equipment
  • Marine and offshore applications

⚠️ Engineering Warnings

  • Not suitable for prolonged exposure to ozone, strong acids, or ketones.
  • Ensure proper lubrication is used during installation to prevent damage.

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 316 Stainless Steel.

Q: What are the main applications?

A: Hydraulic and pneumatic systems, Chemical processing equipment, Marine and offshore applications.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 8.868"CS = 0.113"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.