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Industrial O-Ring, Buna-N, 316 SS, 5.011" ID x 7.721" OD

Expert Overview

Engineered for demanding environments, this Buna-N O-ring features a robust 316 stainless steel housing, providing superior corrosion resistance and reliable sealing capabilities for critical industrial applications.

StandardISO 9001
Material316 Stainless Steel
FinishPlain
GradeN/A
Inside Diameter5.011"
Outside Diameter7.721"
Cross Section0.142"

Detailed Engineering Specifications

A proven choice for industrial professionals, this Buna-N O-ring boasts a precise inside diameter of 5.011 inches and an outside diameter of 7.721 inches, with a cross-section of 0.142 inches. The integral 316 stainless steel construction ensures exceptional resistance to a wide range of chemicals, high temperatures, and corrosive media, making it ideal for hydraulic systems, pneumatic assemblies, and fluid handling equipment where durability and leak-free performance are paramount.

🧊 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 lightly with a compatible lubricant if recommended for the application. 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
Using a lubricant incompatible with Buna-N or the system fluid.Consult chemical compatibility charts and select a lubricant specifically approved for Buna-N and the operating environment.
Forcing the O-ring into a tight groove, leading to nicks or tears.Ensure the O-ring is properly sized for the groove and install with smooth, even pressure. Consider a specialized installation tool for very tight tolerances.

Common Applications

  • Hydraulic cylinder sealing
  • Pneumatic actuator seals
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Verify chemical compatibility with Buna-N and system media before installation.
  • Avoid exposure to ozone, direct sunlight, and high temperatures exceeding Buna-N's operational limits unless specifically rated.

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 cylinder sealing, Pneumatic actuator seals, Chemical processing equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 5.011"CS = 0.142"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.