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Buna-N O-Ring, 316 SS, 4.381" ID, 6.076" OD

Expert Overview

This high-performance Buna-N O-ring, encased in robust 316 stainless steel, offers superior sealing in challenging industrial environments. Engineered for reliability and longevity.

StandardASME B18
Material316 Stainless Steel
FinishPassivated
GradeN/A
Inside Diameter4.381"
Outside Diameter6.076"
Cross Section0.132"

Detailed Engineering Specifications

A proven choice for industrial professionals, this Buna-N O-ring features a precise inside diameter of 4.381 inches and an outside diameter of 6.076 inches, with a 0.132-inch cross-section. The 316 stainless steel housing provides exceptional corrosion resistance, chemical inertness, and mechanical strength, making it suitable for high-pressure and extreme temperature applications. Its robust construction ensures a reliable seal against a wide range of fluids and gases, preventing leaks and maintaining system integrity across various demanding industrial sectors.

🧊 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, free of debris, and properly dimensioned. 2. Carefully place the O-ring into the groove, avoiding stretching or twisting. 3. Apply a light, compatible lubricant if recommended for the application to facilitate installation and proper seating.

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, crushing the O-ringTorque fasteners to manufacturer specifications and use appropriate spacing.
Using incompatible lubricants or cleaning agentsConsult material compatibility charts for Buna-N and 316 stainless steel.
Installing a damaged or nicked O-ringInspect the O-ring for any signs of damage before installation.

Common Applications

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

⚠️ Engineering Warnings

  • Not recommended for use with strong oxidizing acids or ketones.
  • Verify chemical compatibility for specific operating fluids and temperatures.

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 components.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 4.381"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.