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

Nylon Buna-N O-Ring | 3.163" ID, 4.113" OD, 0.118" CS

Expert Overview

This industrial O-ring, crafted from robust Buna-N and reinforced with Nylon, provides exceptional sealing integrity. Engineered for precise fits, it ensures reliable performance in critical fluid and gas containment systems.

StandardASTM A106
MaterialNylon
FinishBlack Oxide
GradeN/A
Inside Diameter3.163"
Outside Diameter4.113"
Cross Section0.118"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this Buna-N O-ring with a Nylon reinforcement offers superior resistance to abrasion, compression set, and a wide range of chemicals. Its precise dimensions, featuring an Inside Diameter of 3.163", an Outside Diameter of 4.113", and a Cross Section of 0.118", guarantee a secure and leak-proof seal in demanding environments. The combination of Buna-N's excellent resilience and Nylon's structural support makes it ideal for hydraulic systems, pneumatic assemblies, and general industrial fluid handling.

🧊 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, dry, 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, ensuring it is not twisted or pinched.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASTM A106

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 excessive force during installation, leading to O-ring damage.Gently stretch and guide the O-ring into place, utilizing appropriate lubrication if necessary.
Installing on a dirty or damaged groove, compromising the seal.Thoroughly inspect and clean the groove before installation.
O-ring being twisted or pinched during installation.Ensure the O-ring is properly seated and lies flat within the groove.

Common Applications

  • Hydraulic Systems
  • Pneumatic Assemblies
  • Fluid Power Equipment

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications exceeding Buna-N's service limits.
  • Avoid exposure to strong oxidizing agents or solvents not compatible with Buna-N.

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 Assemblies, Fluid Power Equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 3.163"CS = 0.118"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.