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Industrial O-Ring, Buna-N, 9.291" ID x 9.175" OD x 0.120" CS

Expert Overview

This industrial O-ring, constructed from robust Buna-N and featuring a 304 stainless steel housing, provides a reliable seal for critical fluid and gas systems. Its precise dimensions ensure a tight, leak-free fit.

StandardASME B18
Material304 Stainless Steel
FinishPassivated
GradeN/A
Inside Diameter9.291"
Outside Diameter9.175"
Cross Section0.120"

Detailed Engineering Specifications

Engineered for reliability and performance, this industrial O-ring is fabricated from high-grade Buna-N, renowned for its excellent resistance to oils, fuels, and many hydraulic fluids. The 304 stainless steel construction provides superior corrosion resistance and structural integrity, making it suitable for harsh environments. With an inside diameter of 9.291 inches, an outside diameter of 9.175 inches, and a cross-section of 0.120 inches, this O-ring is designed for precise fitting within standard groove dimensions, ensuring effective static and dynamic sealing applications.

🧊 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 the mating groove and sealing surfaces thoroughly to remove any debris or residual lubricant. 2. Carefully inspect the O-ring for any nicks, cuts, or embedded particles. 3. Gently install the O-ring into its designated groove, ensuring it is seated evenly and without twisting.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

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
Overtightening the assembly, which can lead to O-ring extrusion or premature failure.Tighten fasteners to the manufacturer's specified torque values, using a calibrated torque wrench.
Using lubricants incompatible with Buna-N, which can degrade the material.Consult a chemical compatibility chart and use only lubricants approved for Buna-N applications.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Fuel and oil transfer lines

⚠️ Engineering Warnings

  • Ensure operating temperature and chemical exposure are within the specified limits for Buna-N and 304 stainless steel.
  • Verify that the O-ring groove dimensions are within tolerance for optimal sealing performance.

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, Fuel and oil transfer lines.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 9.291"CS = 0.120"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.