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Industrial O-Ring, Buna-N, 7.677" ID x 1.419" OD x 0.256" CS

Expert Overview

This robust industrial O-ring, crafted from premium Buna-N, ensures reliable sealing in a wide array of demanding fluid power and mechanical systems. Engineered for consistent performance and longevity.

StandardISO 9001
MaterialNylon
FinishBlack Oxide
GradeN/A
Inside Diameter7.677"
Outside Diameter1.419"
Cross Section0.256"

Detailed Engineering Specifications

Specified by design engineers worldwide, this industrial O-ring features a precise inside diameter of 7.677 inches, an outside diameter of 1.419 inches, and a cross-section of 0.256 inches. Constructed from Buna-N (Nitrile Butadiene Rubber), it offers exceptional resistance to oils, fuels, hydraulic fluids, and many aggressive chemicals, making it ideal for moderate temperature applications up to 212°F (100°C). Its inherent resilience and compression set resistance ensure long-term sealing integrity in dynamic and static environments.

🧊 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 groove and O-ring are clean and free from debris or damage. 2. Apply a small amount of compatible lubricant to the O-ring and groove for easier installation and to prevent tearing. 3. Carefully install the O-ring into the groove, avoiding stretching or twisting, ensuring it sits 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
Using the wrong lubricant, leading to material degradation.Consult compatibility charts to select a lubricant specifically approved for Buna-N.
Overstretching the O-ring during installation, causing premature failure.Install the O-ring without excessive tension, ensuring it fits snugly into the groove.

Common Applications

  • Hydraulic cylinders and pumps
  • Pneumatic systems
  • Fluid transfer lines
  • General industrial machinery

⚠️ Engineering Warnings

  • Not recommended for use with ozone, UV, or outdoor weathering.
  • Avoid exposure to polar solvents such as ketones and esters.

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 cylinders and pumps, Pneumatic systems, Fluid transfer lines, General industrial machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.677"CS = 0.256"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.