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Buna-N O-Ring 8.581" ID x 8.441" OD x 0.087" CS

Expert Overview

This high-quality Buna-N O-ring provides reliable sealing in demanding industrial environments. Engineered for durability and chemical resistance, it ensures leak-free performance across various applications.

StandardDIN 933
MaterialPolycarbonate
FinishPlain
GradeN/A
Inside Diameter8.581"
Outside Diameter8.441"
Cross Section0.087"

Detailed Engineering Specifications

Manufactured under strict quality controls, this Buna-N O-ring features precise dimensions: an Inside Diameter of 8.581", an Outside Diameter of 8.441", and a Cross Section of 0.087". Buna-N (Nitrile) offers excellent resistance to petroleum-based oils, greases, hydraulic fluids, and many common solvents, making it suitable for a wide range of general industrial sealing tasks. Its robust compound ensures durability and longevity under moderate temperature and pressure conditions.

🧊 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 mating groove surfaces are clean and free from debris. 2. Carefully stretch the O-ring over the component, avoiding excessive force or sharp tools. 3. Gently seat the O-ring into its designated groove, confirming a uniform fit.

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 a size larger or smaller than specified.Always verify O-ring dimensions against the component's groove specifications to ensure proper compression and sealing.
Damaging the O-ring during installation.Utilize appropriate O-ring installation tools and avoid sharp edges or excessive stretching to prevent nicks and tears.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • General fluid power
  • Petroleum-based fluid handling

⚠️ Engineering Warnings

  • Not suitable for exposure to ozone, strong acids, or esters.
  • Operating temperature range must be within the material's specifications for optimal performance and lifespan.

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 Polycarbonate.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic cylinders, General fluid power, Petroleum-based fluid handling.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 8.581"CS = 0.087"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.