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

Buna-N O-Ring: 6.759" ID x 7.591" OD x 0.134" CS

Expert Overview

High-performance industrial O-ring featuring a robust Buna-N elastomer core enhanced with a durable nylon reinforcement. Engineered for superior sealing in challenging environments.

StandardISO 9001
MaterialNylon
FinishAnodized
GradeN/A
Inside Diameter6.759"
Outside Diameter7.591"
Cross Section0.134"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this industrial O-ring boasts precise dimensions of 6.759" inside diameter, 7.591" outside diameter, and a 0.134" cross-section. The Buna-N (Nitrile) material offers excellent resistance to oils, fuels, and many hydraulic fluids, while the integrated nylon provides enhanced structural integrity and dimensional stability under pressure and temperature variations. This combination makes it ideal for static and dynamic sealing in moderate to high-pressure systems where chemical compatibility and durability are paramount.

🧊 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 dimensioned. 2. Lubricate the O-ring and groove lightly with a compatible lubricant to prevent damage during installation. 3. Carefully install the O-ring, avoiding stretching or twisting, ensuring it sits flush within the groove.

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
Overstretching the O-ring during installation.Use a lubricant and gently work the O-ring into the groove, avoiding excessive tension.
Installing into a dirty or damaged groove.Thoroughly clean and inspect the groove for any nicks, burrs, or contamination before installation.

Common Applications

  • Hydraulic and Pneumatic Systems
  • Fuel and Oil Handling Equipment
  • Chemical Processing Machinery

⚠️ Engineering Warnings

  • Not recommended for use with strong oxidizing agents, ketones, esters, or chlorinated hydrocarbons.
  • Ensure operating temperatures remain within the specified range for Buna-N to maintain sealing 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 Nylon.

Q: What are the main applications?

A: Hydraulic and Pneumatic Systems, Fuel and Oil Handling Equipment, Chemical Processing Machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.759"CS = 0.134"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.