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Industrial O-Ring, Buna-N, 304 SS | 1.662" ID x 6.582" OD

Expert Overview

This industrial O-ring features a Buna-N sealing element encased in a durable 304 stainless steel housing. Engineered for superior resilience and chemical resistance, it provides robust sealing solutions for critical applications.

StandardASME B18
Material304 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Diameter1.662"
Outside Diameter6.582"
Cross Section0.126"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this industrial O-ring boasts an inside diameter of 1.662 inches, an outside diameter of 6.582 inches, and a precise 0.126-inch cross-section. The Buna-N compound offers excellent resistance to oils, fuels, and many hydraulic fluids, while the 304 stainless steel housing provides superior structural integrity and corrosion resistance, making it ideal for harsh chemical or high-pressure environments. This combination ensures long-term, leak-free performance in demanding industrial machinery and fluid power systems.

🧊 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, dry, and free from debris. 2. Carefully position the O-ring within its groove, avoiding stretching or twisting. 3. Apply light lubrication compatible with Buna-N and the fluid medium if necessary for easier assembly.

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
Overtightening fasteners, crushing the O-ring.Adhere to specified torque values for all fasteners to prevent over-compression.
Using incompatible lubricants that degrade Buna-N.Consult material compatibility charts for appropriate lubrication options.
Allowing sharp edges on mating surfaces to nick or cut the O-ring during installation.Ensure all edges of the groove and mating surfaces are chamfered or radiused.

Common Applications

  • Hydraulic Systems
  • Pneumatic Cylinders
  • Chemical Processing Equipment
  • Automotive Fuel Systems

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents or solvents like ketones and esters.
  • Service temperature range for Buna-N should be considered for optimal performance.

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, Chemical Processing Equipment, Automotive Fuel Systems.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 1.662"CS = 0.126"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.