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Industrial O-Ring, Buna-N, 304 SS, 2.591" ID x 4.812" OD

Expert Overview

This industrial O-ring, crafted from Buna-N and encased in robust 304 stainless steel, provides exceptional sealing integrity. Its precise dimensions ensure a secure fit in critical fluid and gas systems, offering superior resistance to wear and chemical degradation.

StandardASTM A106
Material304 Stainless Steel
FinishBlack Oxide
GradeN/A
Inside Diameter2.591"
Outside Diameter4.812"
Cross Section0.154"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this high-performance industrial O-ring boasts a precise Inside Diameter of 2.591" and an Outside Diameter of 4.812", with a consistent Cross Section of 0.154". The Buna-N elastomer offers excellent resistance to oils, fuels, and hydraulic fluids, while the 304 stainless steel housing provides superior corrosion resistance and mechanical strength. This combination makes it ideal for demanding applications in automotive, aerospace, and chemical processing industries where reliable, long-term sealing is 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 groove is clean and free of debris or damage. 2. Lightly lubricate the O-ring 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 StandardASTM A106

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
Overstretching the O-ring during installation.Install the O-ring without excessive tension, allowing it to seat naturally within the groove.
Using incompatible lubricants that degrade the Buna-N.Consult the material compatibility chart and use only approved lubricants for Buna-N elastomers.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Fluid power applications

⚠️ Engineering Warnings

  • Ensure material compatibility with the operating fluid and temperature range.
  • Avoid exposure to ozone, UV light, and strong oxidizing agents, which can degrade 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 304 Stainless Steel.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic equipment, Fluid power applications.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.591"CS = 0.154"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.