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Industrial Buna-N O-Ring | 6.383" ID x 0.303" OD

Expert Overview

This robust Buna-N industrial O-ring provides reliable sealing in challenging operational settings. Engineered for durability and resistance, it ensures leak-free performance in critical applications.

StandardDIN 933
MaterialNylon
FinishAnodized
GradeN/A
Inside Diameter6.383"
Outside Diameter0.303"
Cross Section0.205"

Detailed Engineering Specifications

Designed for demanding industrial environments, this O-ring features a precise Inside Diameter of 6.383 inches, an Outside Diameter of 0.303 inches, and a Cross Section of 0.205 inches. Constructed from high-quality Buna-N (Nitrile Butadiene Rubber), it exhibits exceptional resistance to oils, fuels, greases, and many hydraulic fluids. This material's resilience makes it ideal for static and dynamic sealing applications where moderate temperatures and aggressive media are present, ensuring long-term sealing integrity and operational efficiency.

🧊 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:N/A

Installation Procedure

1. Ensure the sealing groove is clean, dry, and free from burrs or contaminants. 2. Carefully stretch the O-ring over the component, avoiding excessive force or sharp tools. 3. Seat the O-ring evenly within the groove, confirming it is not twisted or pinched.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

Mechanical Properties

Tensile StrengthStandard Commercial Spec
Yield StrengthStandard Commercial Spec
HardnessVaries by specific batch

Temperature & Environment Rating

Min Operating Temp
-20°F (-29°C)
Max Continuous Temp
400°F (204°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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using excessive force during installation, leading to cuts or tears.Gently stretch the O-ring and use a rounded tool if necessary to ease it into the groove.
Installing on a dirty or damaged surface, compromising the seal.Thoroughly clean and inspect the sealing groove and mating surfaces before installation.
Over-stretching the O-ring, causing premature failure.Select the correct O-ring size for the groove and apply only the necessary stretch to fit.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Fuel and oil systems

⚠️ Engineering Warnings

  • Not suitable for high temperatures exceeding Buna-N's operational limits.
  • Avoid exposure to ozone, UV light, and weathering, which can degrade the material.

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 Nylon.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic equipment, Fuel and oil systems.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.383"CS = 0.205"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.