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3.868" Buna-N Industrial O-Ring | 316 SS | High Performance

Expert Overview

This industrial O-ring, constructed from robust Buna-N and housed in 316 stainless steel, ensures reliable sealing in demanding environments. Its precise dimensions guarantee a secure fit and long-lasting performance.

StandardISO 9001
Material316 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Diameter3.868"
Outside Diameter1.072"
Cross Section0.192"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this Buna-N O-ring features an Inside Diameter of 3.868", an Outside Diameter of 1.072", and a Cross Section of 0.192". The 316 stainless steel housing provides exceptional corrosion resistance, making it ideal for applications involving aggressive chemicals, high temperatures, and extreme pressures. This material combination offers excellent resilience and sealing integrity in hydraulic systems, pneumatic equipment, and general industrial machinery where fluid or gas containment is critical.

🧊 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 is clean and free of debris. 2. Lubricate the O-ring and groove lightly with a compatible lubricant. 3. Carefully install the O-ring into the groove, avoiding stretching or twisting.

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
Overtightening or excessive stretching during installation.Install the O-ring without undue force, ensuring it sits flush within the groove.
Using incompatible lubricants or cleaning agents.Consult material compatibility charts to select lubricants and cleaners that will not degrade Buna-N or 316 stainless steel.

Common Applications

  • Hydraulic and Pneumatic Systems
  • Chemical Processing Equipment
  • Automotive and Aerospace Sealing

⚠️ Engineering Warnings

  • Verify chemical compatibility of the fluid medium with Buna-N material.
  • Ensure operating temperatures remain within the specified limits for 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 Sealing.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 3.868"CS = 0.192"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.