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Industrial O-Ring, Buna-N | 304 Stainless Steel | 1.742" ID

Expert Overview

This industrial O-ring, constructed from robust Buna-N and housed within a 304 stainless steel casing, provides exceptional sealing performance under demanding conditions. Precisely manufactured to exact specifications for reliable fluid and gas containment.

StandardDIN 933
Material304 Stainless Steel
FinishBlack Oxide
GradeN/A
Inside Diameter1.742"
Outside Diameter0.401"
Cross Section0.126"

Detailed Engineering Specifications

Specified by design engineers worldwide, this industrial O-ring features a precise 1.742" inside diameter, a 0.401" outside diameter, and a 0.126" cross-section. The Buna-N compound offers excellent resistance to oils, fuels, and many hydraulic fluids, while the 304 stainless steel housing ensures superior corrosion resistance and structural integrity in aggressive environments. This combination makes it ideal for applications requiring dependable sealing in chemical processing, automotive systems, and general industrial 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 mating surfaces are clean, dry, and free from burrs or debris. 2. Carefully position the O-ring within its designated groove, avoiding stretching or twisting. 3. Apply a thin, compatible lubricant if necessary to facilitate seating and prevent damage during assembly.

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
Using excessive force during installation, leading to O-ring deformation or damage.Apply light, even pressure and use appropriate tools to gently seat the O-ring into its groove.
Improperly cleaning mating surfaces, resulting in leaks due to particulate intrusion.Thoroughly inspect and clean all sealing surfaces before installation, ensuring they are free from contaminants.

Common Applications

  • Hydraulic Systems
  • Pneumatic Systems
  • Chemical Processing Equipment
  • Automotive Fuel Systems
  • General Industrial Machinery

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents or certain aggressive solvents.
  • Verify compatibility of the Buna-N compound with the specific media and operating temperature range.

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 Systems, Chemical Processing Equipment, Automotive Fuel Systems, General Industrial Machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 1.742"CS = 0.126"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.