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Buna-N O-Ring, 316 Stainless Steel, 8.208" ID x 10.844" OD

Expert Overview

This industrial O-ring, constructed with a robust Buna-N elastomer and a 316 stainless steel housing, provides exceptional sealing integrity. Designed for challenging operational conditions, it ensures leak-free performance across a wide range of applications.

StandardDIN 933
Material316 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Diameter8.208"
Outside Diameter10.844"
Cross Section0.132"

Detailed Engineering Specifications

Engineered for reliability and performance, this industrial O-ring features a precise Buna-N sealing element encapsulated within a corrosion-resistant 316 stainless steel housing. The specified dimensions of 8.208 inches inside diameter, 10.844 inches outside diameter, and a 0.132 inches cross-section ensure a perfect fit and optimal compression for effective static and dynamic sealing. The inherent chemical resistance of Buna-N to oils, fuels, and many hydraulic fluids, coupled with the superior strength and corrosion resistance of 316 stainless steel, makes this O-ring ideal for high-pressure, high-temperature, and chemically aggressive environments. Its construction minimizes extrusion and wear, extending service life and reducing maintenance downtime in critical systems.

🧊 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 position the O-ring into the groove, avoiding any stretching or twisting. 3. Ensure uniform compression across the entire circumference as the mating part is assembled.

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 without excessive stretching, allowing it to conform to the groove naturally.
Using incompatible lubricants that degrade the Buna-N.Consult a chemical compatibility chart and use only lubricants approved for Buna-N and the specific application.
Installing on a damaged or dirty groove surface.Thoroughly inspect and clean the groove before installation to prevent leaks and premature O-ring failure.

Common Applications

  • Hydraulic and pneumatic systems
  • Automotive and aerospace components
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing acids, ketones, esters, or chlorinated hydrocarbons.
  • Verify temperature and pressure ratings against operating conditions to ensure optimal performance and safety.

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, Automotive and aerospace components, Chemical processing equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 8.208"CS = 0.132"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.