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Industrial Buna-N O-Ring | 8.629" ID x 1.121" OD x 0.172" CS

Expert Overview

This industrial O-ring, constructed from durable Buna-N, ensures reliable sealing in a wide range of applications. Its precise dimensions guarantee a tight, leak-proof fit.

StandardISO 9001
MaterialNylon
FinishPlain
GradeN/A
Inside Diameter8.629"
Outside Diameter1.121"
Cross Section0.172"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this Buna-N O-ring features an Inside Diameter of 8.629 inches, an Outside Diameter of 1.121 inches, and a Cross Section of 0.172 inches. Buna-N (Nitrile) offers excellent resistance to oils, fuels, and hydraulic fluids, making it ideal for general-purpose sealing in automotive, industrial machinery, and fluid power systems. Its robust material properties provide dependable performance across a broad temperature range, maintaining seal integrity under moderate pressure.

🧊 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 mating surfaces are clean and free from debris. 2. Carefully stretch the O-ring over the shaft or into the groove, avoiding excessive force or sharp tools. 3. Gently seat the O-ring to confirm it is within its designated groove and not twisted.

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 a twisted or pinched O-ring.Inspect the O-ring for twists or pinching before assembly; ensure it lies flat in the groove.
Applying excessive force during installation.Use appropriate tools and gentle pressure to avoid damaging the O-ring or its mating surfaces.

Common Applications

  • Hydraulic Systems
  • Pneumatic Systems
  • Fuel and Oil Lines
  • Automotive Seals

⚠️ Engineering Warnings

  • Not suitable for applications involving ozone, ketones, or esters.
  • Consult chemical compatibility charts for specific fluid applications.

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 Systems, Fuel and Oil Lines, Automotive Seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 8.629"CS = 0.172"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.