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316 Stainless Steel Industrial O-Ring - Buna-N

Expert Overview

Engineered for superior chemical resistance and durability, this Buna-N O-ring features a robust 316 stainless steel construction. It provides reliable sealing in challenging industrial applications, ensuring operational integrity and preventing leaks under extreme conditions.

StandardDIN 933
Material316 Stainless Steel
FinishBlack Oxide
GradeN/A
Inside Diameter9.951"
Outside Diameter0.471"
Cross Section0.271"

Detailed Engineering Specifications

Specified by design engineers worldwide, this industrial O-ring exemplifies precision sealing technology. Constructed from premium 316 stainless steel, it offers exceptional corrosion resistance, making it ideal for aggressive chemical environments and high-temperature applications. The O-ring boasts an Inside Diameter of 9.951", an Outside Diameter of 0.471", and a Cross Section of 0.271". This configuration ensures a tight, secure seal in demanding hydraulic, pneumatic, and fluid handling systems where material integrity and longevity are paramount.

🧊 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 surfaces are clean, free of debris, and properly lubricated with a compatible lubricant. 2. Carefully stretch the O-ring over the smaller component or into the groove, avoiding any sharp edges or tools that could nick or cut the material. 3. Gently seat the O-ring into its groove, ensuring it is evenly distributed and not twisted.

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
Using the wrong lubricant, which can degrade the Buna-N material.Always consult the material compatibility chart and use a lubricant specifically recommended for Buna-N and the application's fluid.
Overtightening fasteners, which can excessively compress the O-ring and lead to premature failure.Adhere to specified torque values for all mating components to ensure proper compression and sealing.
Installing the O-ring with sharp tools or across sharp edges, causing nicks or cuts.Use specialized O-ring installation tools or exercise extreme care and gentle handling to prevent any damage to the O-ring's surface.

Common Applications

  • Hydraulic systems
  • Pneumatic systems
  • Chemical processing equipment
  • Fluid transfer lines
  • Automotive seals

⚠️ Engineering Warnings

  • Buna-N is not recommended for use with strong oxidizing agents, ozone, or certain ester/ketone solvents.
  • Ensure the operating temperature remains within the specified limits for Buna-N to prevent material degradation and seal failure.

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, Pneumatic systems, Chemical processing equipment, Fluid transfer lines, Automotive seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 9.951"CS = 0.271"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.