Home > Sealing > Industrial O-Ring, Buna-N

Buna-N Industrial O-Ring | 304 Stainless Steel | 2.572" OD

Expert Overview

This industrial O-ring features a Buna-N sealing element within a robust 304 stainless steel housing. Engineered for high-pressure and harsh environments, it ensures dependable sealing in critical applications.

StandardDIN 933
Material304 Stainless Steel
FinishPlain
GradeN/A
Inside Diameter5.963"
Outside Diameter2.572"
Cross Section0.127"

Detailed Engineering Specifications

Engineered for reliability and performance, this industrial O-ring boasts an exceptional Buna-N elastomer for superior chemical resistance and sealing properties, complemented by a durable 304 stainless steel construction for enhanced corrosion resistance and structural integrity. The precise dimensions of a 5.963-inch inside diameter, 2.572-inch outside diameter, and a 0.127-inch cross-section guarantee a precise fit and effective seal in its intended applications. This combination of materials and tight tolerances makes it suitable for demanding fluid power, chemical processing, and general industrial equipment.

🧊 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. Inspect both the groove and the O-ring for debris or damage. 2. Lubricate the O-ring and the groove with a compatible lubricant. 3. Carefully install the O-ring into the designated groove, ensuring no twisting or stretching occurs.

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 damage.Apply moderate, even pressure. Use appropriate tools if necessary, ensuring they do not nick or cut the O-ring.
Incorrect O-ring material selection for the fluid or environment.Always verify the chemical compatibility of Buna-N with the specific media and operating temperatures. Consult material compatibility charts.

Common Applications

  • Hydraulic Systems
  • Pneumatic Cylinders
  • Chemical Processing Equipment
  • Fluid Power Assemblies

⚠️ Engineering Warnings

  • Ensure operating temperatures remain within the specified range for Buna-N elastomer.
  • Avoid exposure to ozone, UV, or 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 Cylinders, Chemical Processing Equipment, Fluid Power Assemblies.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 5.963"CS = 0.127"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.