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

316 Stainless Steel Industrial O-Ring - 5.577" ID

Expert Overview

Engineered for robust sealing solutions, this Buna-N industrial O-ring features a 316 stainless steel housing. Its precise dimensions ensure superior performance in challenging industrial applications requiring excellent chemical and temperature resistance.

StandardASME B18
Material316 Stainless Steel
FinishPlain
GradeN/A
Inside Diameter5.577"
Outside Diameter9.417"
Cross Section0.202"

Detailed Engineering Specifications

Designed for demanding industrial environments, this Buna-N O-ring is encased in a high-grade 316 stainless steel housing, providing exceptional corrosion resistance and mechanical integrity. With an inside diameter of 5.577 inches, an outside diameter of 9.417 inches, and a cross-section of 0.202 inches, it offers a reliable seal in hydraulic systems, pneumatic equipment, and chemical processing machinery. The Buna-N elastomer delivers excellent resistance to oils, fuels, and many common industrial fluids, while the stainless steel construction ensures durability and longevity under extreme pressure and temperature fluctuations.

🧊 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 sealing groove is clean, dry, and free from debris. 2. Carefully position the O-ring within the groove, avoiding any stretching or twisting. 3. Apply a light coating of compatible lubricant to the O-ring and groove if recommended for the specific application.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

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
Overtightening fasteners, leading to O-ring extrusion or pinching.Follow recommended torque specifications for all fasteners to avoid over-compression.
Using incompatible lubricants that degrade the Buna-N elastomer.Consult the O-ring manufacturer's compatibility chart for approved lubricants.
Damaging the O-ring during installation by using sharp tools.Use only rounded, non-marring installation tools or install by hand.

Common Applications

  • Hydraulic and Pneumatic Systems
  • Chemical Processing Equipment
  • Automotive and Aerospace Fluid Connectors

⚠️ Engineering Warnings

  • Verify chemical compatibility of Buna-N with the specific fluid being sealed.
  • Avoid exposure to ozone, UV light, or weathering, 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 and Pneumatic Systems, Chemical Processing Equipment, Automotive and Aerospace Fluid Connectors.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 5.577"CS = 0.202"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.