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

Buna-N O-Ring | 316 Stainless Steel | 1.743" OD | Sealing

Expert Overview

Engineered for superior sealing, this Buna-N O-ring features a robust 316 stainless steel construction. Its precise dimensions ensure reliable performance in challenging industrial environments.

StandardDIN 933
Material316 Stainless Steel
FinishPlain
GradeN/A
Inside Diameter8.201"
Outside Diameter1.743"
Cross Section0.131"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this Buna-N O-ring is manufactured to stringent tolerances, boasting an inside diameter of 8.201", an outside diameter of 1.743", and a cross-section of 0.131". The Buna-N material offers excellent resistance to oils, fuels, and hydraulic fluids, while the 316 stainless steel housing provides exceptional corrosion resistance, making it suitable for high-pressure, high-temperature, and chemically aggressive applications. This combination ensures long-term sealing integrity 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 sealing surfaces are clean and free of debris. 2. Carefully install the O-ring into its designated groove, avoiding any stretching or twisting. 3. Apply a light coating of compatible lubricant if recommended for the application.

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.Gently guide the O-ring into the groove without excessive tension. Use appropriate tools if needed for tight fits.
Using an incompatible lubricant or cleaning agent.Consult the O-ring material compatibility chart for approved lubricants and cleaning solutions.

Common Applications

  • Hydraulic Systems
  • Automotive Powertrains
  • Chemical Processing Equipment

⚠️ Engineering Warnings

  • Not suitable for applications involving strong oxidizing agents or ketones.
  • Ensure the O-ring material is compatible with the specific fluid and operating temperature range.

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, Automotive Powertrains, Chemical Processing Equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 8.201"CS = 0.131"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.