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Industrial O-Ring, Buna-N, 2.631" ID, 5.011" OD, 304 SS

Expert Overview

This industrial O-ring features durable Buna-N sealing material within a robust 304 stainless steel housing. Engineered for precise fit and reliable performance in critical sealing applications.

StandardISO 9001
Material304 Stainless Steel
FinishGalvanized
GradeN/A
Inside Diameter2.631"
Outside Diameter5.011"
Cross Section0.170"

Detailed Engineering Specifications

Manufactured under strict quality controls, this industrial O-ring is constructed with a Buna-N sealing element and a 304 stainless steel housing. It boasts an inside diameter of 2.631 inches, an outside diameter of 5.011 inches, and a cross-section of 0.170 inches. The Buna-N offers excellent resistance to oils, fuels, and hydraulic fluids, while the 304 stainless steel provides superior corrosion resistance and mechanical strength, making it ideal for high-pressure and chemically aggressive environments.

🧊 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. Clean mating surfaces thoroughly to remove any debris or contaminants. 2. Lightly lubricate the O-ring with a compatible lubricant (refer to compatibility chart). 3. Carefully install the O-ring into its designated groove, ensuring it is seated without twisting or pinching.

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)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°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 / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using incorrect lubricant, leading to material degradation.Always consult the Buna-N and 304 stainless steel compatibility charts for appropriate lubrication.
Over-tightening fasteners, causing O-ring compression and premature failure.Torque fasteners to the manufacturer's recommended specifications to avoid excessive squeeze.
Installing a twisted or pinched O-ring.Ensure the O-ring is properly seated and free of twists or kinks before assembly.

Common Applications

  • Hydraulic systems
  • Pneumatic actuators
  • Fluid power equipment
  • Automotive sealing
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Not suitable for exposure to ozone, strong acids, or esters.
  • Ensure compatibility of the sealing element with the fluid or gas being contained.

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 304 Stainless Steel.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic actuators, Fluid power equipment, Automotive sealing, Chemical processing equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.631"CS = 0.170"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.