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Industrial O-Ring, Buna-N, 316 SS, 9.638" ID, 4.282" OD

Expert Overview

This robust industrial O-ring features a Buna-N sealing element encased in a 316 stainless steel housing. Engineered for exceptional durability and chemical resistance, it ensures reliable sealing in high-pressure and corrosive applications.

StandardDIN 933
Material316 Stainless Steel
FinishPassivated
GradeN/A
Inside Diameter9.638"
Outside Diameter4.282"
Cross Section0.203"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this industrial O-ring boasts a nominal inside diameter of 9.638 inches and an outside diameter of 4.282 inches, with a cross-section of 0.203 inches. The Buna-N elastomer provides excellent resistance to oils, fuels, and hydraulic fluids, while the 316 stainless steel housing offers superior corrosion resistance, making it ideal for harsh chemical processing, marine, and food-grade environments. This combination ensures long-term sealing integrity and performance under extreme operating conditions.

🧊 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 the mating groove is clean and free of debris. 2. Carefully install the O-ring into the groove, avoiding stretching or twisting. 3. Verify proper seating and compression before applying pressure.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

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.Install the O-ring by carefully working it into the groove without excessive elongation to maintain its sealing properties.
Using the wrong O-ring material for the fluid being sealed.Always confirm the compatibility of the Buna-N elastomer with the specific chemical or fluid in your application.

Common Applications

  • Hydraulic Systems
  • Chemical Processing Equipment
  • Food and Beverage Machinery

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents or polar solvents.
  • Avoid exposure to ozone and UV radiation, 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 316 Stainless Steel.

Q: What are the main applications?

A: Hydraulic Systems, Chemical Processing Equipment, Food and Beverage Machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 9.638"CS = 0.203"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.