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Industrial O-Ring, Buna-N | 316 Stainless Steel | 6.725" ID

Expert Overview

This industrial O-ring utilizes a Buna-N sealing element within a robust 316 stainless steel housing. Engineered for superior resistance to chemicals and abrasion, it provides reliable, long-lasting sealing in demanding applications.

StandardISO 9001
Material316 Stainless Steel
FinishPlain
GradeN/A
Inside Diameter6.725"
Outside Diameter7.601"
Cross Section0.219"

Detailed Engineering Specifications

Manufactured under strict quality controls, this O-ring features a precise 6.725" inside diameter, a 7.601" outside diameter, and a 0.219" cross-section. The Buna-N material offers excellent resistance to petroleum-based oils, fuels, and hydraulic fluids, while the 316 stainless steel housing provides exceptional corrosion resistance, particularly in marine or acidic environments. This combination ensures reliable sealing performance across a wide temperature range, making it suitable for static and dynamic applications in chemical processing, oil and gas, and heavy machinery.

🧊 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 groove is clean, free of debris, and properly dimensioned for the O-ring's cross-section. 2. Lightly lubricate the O-ring and groove with a compatible lubricant to prevent damage during installation. 3. Carefully install the O-ring into the groove, avoiding stretching or twisting, ensuring it seats evenly.

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 excessive force during installation, leading to O-ring nicking or tearing.Apply moderate, even pressure and use appropriate tools if necessary to avoid damaging the O-ring's surface.
Incorrect groove dimensions, causing the O-ring to be over- or under-compressed.Verify that the groove dimensions meet the O-ring's specifications for optimal sealing and lifespan.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Chemical processing equipment
  • Marine applications

⚠️ Engineering Warnings

  • Not suitable for high-temperature steam applications.
  • Avoid prolonged exposure to ozone or UV radiation.

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, Pneumatic cylinders, Chemical processing equipment, Marine applications.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.725"CS = 0.219"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.