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Industrial O-Ring, Buna-N, SS 304, 7.667" ID x 1.819" OD

Expert Overview

Engineered for demanding industrial environments, this Buna-N O-ring, housed within a robust 304 stainless steel casing, provides superior sealing performance and chemical resistance.

StandardASTM A106
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Diameter7.667"
Outside Diameter1.819"
Cross Section0.248"

Detailed Engineering Specifications

Specified by design engineers worldwide, this industrial O-ring features an inside diameter of 7.667 inches, an outside diameter of 1.819 inches, and a critical cross-section of 0.248 inches. The Buna-N elastomer offers excellent resistance to oils, fuels, and hydraulic fluids, while the 304 stainless steel housing ensures exceptional durability and corrosion resistance in harsh chemical and high-pressure applications. This combination makes it ideal for static and dynamic sealing in petrochemical, automotive, and manufacturing 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 groove is clean, free of debris, and properly lubricated with a compatible lubricant. 2. Carefully position the O-ring within the groove, avoiding any stretching or twisting. 3. Apply even, controlled pressure to install the mating component, allowing the O-ring to seat properly.

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
Overtightening the mating component, which can lead to O-ring extrusion or damage.Adhere to specified torque values for the assembly to prevent over-compression of the O-ring.
Using incompatible lubricants or cleaning agents that degrade the Buna-N material.Consult material compatibility charts and use only approved lubricants and cleaning solutions for Buna-N.

Common Applications

  • Hydraulic systems
  • Pneumatic systems
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents or high concentrations of certain solvents.
  • Ensure proper material compatibility with the fluid medium 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.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.667"CS = 0.248"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.