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Industrial Buna-N O-Ring - 304 Stainless Steel, 7.102" ID

Expert Overview

This high-performance Buna-N O-ring, housed within a robust 304 stainless steel casing, offers superior sealing integrity. Engineered for resilience in challenging industrial environments, it ensures reliable containment and operational efficiency.

StandardASME B18
Material304 Stainless Steel
FinishBlack Oxide
GradeN/A
Inside Diameter7.102"
Outside Diameter4.481"
Cross Section0.202"

Detailed Engineering Specifications

Built to exacting engineering tolerances, this industrial O-ring features a precise Inside Diameter of 7.102 inches, an Outside Diameter of 4.481 inches, and a Cross Section of 0.202 inches. The Buna-N elastomer provides excellent resistance to oils, fuels, and many hydraulic fluids, while the 304 stainless steel housing imparts exceptional corrosion resistance and mechanical strength. This combination makes it ideal for high-pressure systems, chemical processing, and applications requiring durability in aggressive media and temperatures.

🧊 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, dry, and free of burrs or foreign debris. 2. Carefully apply a thin, compatible lubricant to the O-ring and the groove if recommended for the specific application. 3. Gently install the O-ring into the groove, ensuring it sits evenly and is not twisted or pinched.

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
Using excessive force during installation, leading to O-ring extrusion or damage.Apply appropriate lubrication and use gentle, even pressure to seat the O-ring.
Installing on a contaminated or damaged groove surface.Thoroughly clean and inspect the groove for any imperfections before O-ring installation.

Common Applications

  • Hydraulic Systems
  • Pneumatic Equipment
  • Chemical Processing Equipment

⚠️ Engineering Warnings

  • Verify compatibility of Buna-N elastomer with the specific fluid or chemical being sealed.
  • Avoid exposure to ozone, UV, or weathering, which can degrade Buna-N material over time.

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, Chemical Processing Equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.102"CS = 0.202"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.