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Buna-N O-Ring, 304 Stainless Steel, 6.967" ID

Expert Overview

This high-quality industrial O-ring features a robust Buna-N sealing element within a durable 304 stainless steel housing. Engineered for superior chemical resistance and mechanical integrity.

StandardASME B18
Material304 Stainless Steel
FinishGalvanized
GradeN/A
Inside Diameter6.967"
Outside Diameter6.689"
Cross Section0.092"

Detailed Engineering Specifications

Engineered for reliability and performance, this industrial O-ring boasts a precise 6.967-inch inside diameter, 6.689-inch outside diameter, and a 0.092-inch cross-section. The Buna-N material offers excellent resistance to oils, fuels, and hydraulic fluids, while the 304 stainless steel housing provides exceptional corrosion resistance and structural support in harsh environments. This combination ensures a secure and long-lasting seal in applications requiring durability and chemical inertness.

🧊 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 mating groove and O-ring thoroughly to remove any debris or contaminants. 2. Carefully inspect the O-ring for any nicks, cuts, or damage before installation. 3. Apply a thin layer of compatible lubricant to the O-ring and the groove to facilitate installation and prevent damage.

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, potentially damaging the O-ring.Apply a suitable lubricant and use a gentle, consistent motion to seat the O-ring.
Installing a damaged or contaminated O-ring, leading to premature failure.Always inspect the O-ring for defects and ensure both the O-ring and the groove are clean before installation.

Common Applications

  • Hydraulic Systems
  • Pneumatic Systems
  • Fluid Power Equipment
  • Chemical Processing

⚠️ Engineering Warnings

  • Ensure compatibility of Buna-N with the specific media being sealed.
  • Avoid exposure to high temperatures exceeding Buna-N's operational limits.
  • Verify that the 304 stainless steel housing is suitable for the environmental conditions.

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, Fluid Power Equipment, Chemical Processing.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.967"CS = 0.092"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.