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Buna-N Industrial O-Ring, 7.065" OD, 304 SS

Expert Overview

This robust Buna-N O-ring, constructed with durable 304 stainless steel, provides exceptional sealing performance. Engineered for precise fits and reliable operation in a wide range of industrial applications requiring superior chemical resistance and mechanical integrity.

StandardISO 9001
Material304 Stainless Steel
FinishPassivated
GradeN/A
Inside Diameter6.387"
Outside Diameter7.065"
Cross Section0.145"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this industrial O-ring features a precise 6.387" inside diameter, a 7.065" outside diameter, and a 0.145" cross-section. The Buna-N (Nitrile) elastomer offers excellent resistance to oils, fuels, and many hydraulic fluids, making it ideal for dynamic and static seal applications. The 304 stainless steel housing provides enhanced structural support and corrosion resistance, crucial for high-pressure and chemically aggressive environments. This combination ensures longevity and dependable sealing in automotive, hydraulic, 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. Inspect the groove and mating surfaces for cleanliness and absence of damage. 2. Lightly lubricate the O-ring and groove with a compatible lubricant. 3. Carefully install the O-ring into the designated groove, ensuring it is not twisted or stretched.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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
Over-stretching or twisting the O-ring during installation.Ensure the O-ring is correctly sized for the groove and install it gently, avoiding any torsional forces.
Installing into a dirty or damaged groove.Thoroughly clean the groove and inspect for any burrs or imperfections that could compromise the seal.

Common Applications

  • Hydraulic Systems
  • Pneumatic Cylinders
  • Fluid Power Equipment
  • Automotive Seals

⚠️ Engineering Warnings

  • Ensure material compatibility with the specific media and operating temperatures.
  • Do not exceed recommended pressure or temperature limits for 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, Fluid Power Equipment, Automotive Seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.387"CS = 0.145"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.