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

316 Stainless Steel Industrial O-Ring | 4.279" ID, 9.183" OD

Expert Overview

This industrial O-ring features a robust Buna-N sealing element encapsulated within a corrosion-resistant 316 stainless steel housing. Engineered for reliability in harsh conditions, it ensures a secure, leak-proof seal.

StandardISO 9001
Material316 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Diameter4.279"
Outside Diameter9.183"
Cross Section0.070"

Detailed Engineering Specifications

Built to exacting engineering tolerances, this O-ring boasts an Inside Diameter of 4.279", an Outside Diameter of 9.183", and a precise Cross Section of 0.070". The 316 stainless steel housing provides exceptional resistance to a wide range of chemicals, high temperatures, and corrosive media, making it ideal for applications requiring extreme durability and long service life. The Buna-N elastomer offers excellent resistance to oils, fuels, and hydraulic fluids, ensuring consistent performance in demanding operational 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 the mating surfaces are clean, dry, and free from debris. 2. Carefully position the O-ring onto the designated groove or shaft, avoiding stretching or twisting. 3. Apply a light coating of compatible lubricant if recommended for the specific application to facilitate assembly and prevent damage.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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 or over-lubricating.Always consult compatibility charts for lubricants suitable with Buna-N and 316 stainless steel. Apply lubricant sparingly to aid installation only.
Forcing the O-ring into a groove that is too small or stretching it excessively.Verify the groove dimensions match the O-ring specifications. Install the O-ring without excessive stretching to maintain its sealing integrity.

Common Applications

  • Hydraulic and pneumatic systems
  • Chemical processing equipment
  • Automotive and aerospace fluid handling

⚠️ Engineering Warnings

  • Not suitable for high-concentration oxidizing acids or ketones.
  • Ensure operating temperature remains within the specified limits for Buna-N and 316 stainless steel.

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, Automotive and aerospace fluid handling.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 4.279"CS = 0.070"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.