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

Industrial O-Ring, Buna-N | 304 Stainless Steel | 6.852" ID

Expert Overview

This industrial O-ring, crafted from robust Buna-N and housed within a 304 Stainless Steel retainer, offers exceptional sealing integrity. Designed for reliability in challenging operational conditions, ensuring leak-free performance.

StandardISO 9001
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Diameter6.852"
Outside Diameter7.501"
Cross Section0.104"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this Buna-N O-ring, specified with an Inside Diameter of 6.852", Outside Diameter of 7.501", and a Cross Section of 0.104", is engineered for critical sealing applications. The Buna-N material provides excellent resistance to oils, fuels, and many hydraulic fluids, while the 304 stainless steel construction offers superior corrosion resistance and mechanical strength, making it suitable for extreme temperature variations and aggressive chemical environments where standard O-rings would fail.

🧊 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 mating surfaces are clean and free of debris. 2. Carefully place the O-ring into the designated groove, ensuring it is not twisted. 3. Apply light lubrication with a compatible fluid if necessary to facilitate installation and prevent damage.

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
Overtightening the assembly, which can compress the O-ring beyond its elastic limit, leading to permanent deformation and seal failure.Adhere to specified torque values for fasteners. Consult assembly drawings for correct tightening sequences and pressures.
Using incompatible lubricants or cleaning agents that degrade the Buna-N material or corrode the stainless steel.Always verify lubricant and cleaning agent compatibility with both Buna-N and 304 stainless steel before application.

Common Applications

  • Hydraulic and Pneumatic Systems
  • Automotive and Aerospace Components
  • Chemical Processing Equipment

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing acids or ketones. Consult chemical resistance charts for specific applications.
  • Avoid prolonged exposure to UV light and ozone, as this can degrade the 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 and Pneumatic Systems, Automotive and Aerospace Components, Chemical Processing Equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.852"CS = 0.104"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.