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Industrial O-Ring, Buna-N, Nylon, 6.278" ID x 8.865" OD

Expert Overview

Engineered for superior sealing performance, this Buna-N O-ring, reinforced with Nylon, offers exceptional durability and chemical resistance. Its precise dimensions ensure a reliable seal in demanding industrial environments.

StandardISO 9001
MaterialNylon
FinishBlack Oxide
GradeN/A
Inside Diameter6.278"
Outside Diameter8.865"
Cross Section0.244"

Detailed Engineering Specifications

Built to exacting engineering tolerances, this industrial O-ring boasts an Inside Diameter of 6.278 inches, an Outside Diameter of 8.865 inches, and a Cross Section of 0.244 inches. Constructed from durable Buna-N (Nitrile Butadiene Rubber) with an integrated Nylon reinforcement, it provides excellent resistance to petroleum-based hydraulic fluids, oils, and many common chemicals. The Nylon core enhances its structural integrity and extrusion resistance, making it ideal for medium-pressure applications where dimensional stability and robust sealing are paramount. This combination of materials ensures longevity and reliable performance in sectors such as automotive, hydraulics, and general machinery.

🧊 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, free of debris, and properly machined according to design specifications. 2. Lightly lubricate the O-ring with a compatible lubricant to facilitate installation and prevent damage. 3. Carefully place the O-ring into the groove, avoiding stretching or twisting, and ensure it is seated evenly.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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
Overtightening during assembly, causing extrusion or damage.Follow recommended torque specifications and ensure proper gland design to prevent over-compression.
Using incompatible lubricants, leading to material degradation.Always consult the Buna-N chemical compatibility chart for appropriate lubricant selection.

Common Applications

  • Hydraulic cylinder seals
  • Pneumatic systems
  • Fuel and oil lines

⚠️ Engineering Warnings

  • Not recommended for use with ozone, ketones, or esters.
  • Operating temperature range for Buna-N should be strictly adhered to.

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 cylinder seals, Pneumatic systems, Fuel and oil lines.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.278"CS = 0.244"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.