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Industrial O-Ring, Buna-N, 304 Stainless Steel, 2.804" ID

Expert Overview

This high-performance industrial O-ring features a robust Buna-N sealing element within a durable 304 stainless steel housing. Engineered for superior resistance to chemicals and extreme temperatures, ensuring reliable sealing in critical applications.

StandardDIN 933
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Diameter2.804"
Outside Diameter1.203"
Cross Section0.234"

Detailed Engineering Specifications

Designed for demanding industrial environments, this O-ring boasts an Inside Diameter of 2.804 inches, an Outside Diameter of 1.203 inches, and a Cross Section of 0.234 inches. The Buna-N material provides excellent resistance to petroleum-based oils, fuels, and hydraulic fluids, while the 304 stainless steel housing offers superior corrosion resistance and mechanical strength. This combination ensures longevity and dependable sealing performance across a wide temperature range, making it ideal for hydraulic systems, pneumatic equipment, and fluid transfer applications where both chemical compatibility and structural integrity 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 sealing groove is clean, free of debris, and properly dimensioned for the O-ring. 2. Lightly lubricate the O-ring with a compatible lubricant if recommended for the specific application. 3. Carefully install the O-ring into the groove, avoiding any stretching or twisting, and ensure it sits flush without pinching.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

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.Gently ease the O-ring into the groove, using a lubricant if necessary, to prevent deformation and premature failure.
Incorrect O-ring size for the groove.Verify the O-ring's inside diameter, outside diameter, and cross-section dimensions match the specified groove dimensions precisely.
Installing into a dirty or damaged groove.Thoroughly clean and inspect the groove for any burrs or damage that could compromise the seal or damage the O-ring.

Common Applications

  • Hydraulic Systems
  • Pneumatic Equipment
  • Fluid Transfer Lines
  • Chemical Processing Equipment
  • Automotive Fuel Systems

⚠️ Engineering Warnings

  • Not suitable for use with aggressive solvents or strong oxidizing agents. Consult chemical compatibility charts.
  • Ensure operating temperature and pressure are within the specified limits for Buna-N and 304 stainless steel to prevent premature failure.

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 Transfer Lines, Chemical Processing Equipment, Automotive Fuel Systems.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.804"CS = 0.234"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.