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

Buna-N Nylon Industrial O-Ring - 6.656" ID x 0.988" OD

Expert Overview

This industrial O-ring, crafted from durable Buna-N Nylon, offers exceptional sealing performance in challenging environments. Precisely manufactured for reliable fluid and gas containment.

StandardASME B18
MaterialNylon
FinishZinc Plated
GradeN/A
Inside Diameter6.656"
Outside Diameter0.988"
Cross Section0.203"

Detailed Engineering Specifications

Specified by design engineers worldwide, this Buna-N Nylon O-ring (6.656" Inside Diameter, 0.988" Outside Diameter, 0.203" Cross Section) provides superior resistance to abrasion, hydrocarbons, and moderate temperatures. Its robust nylon reinforcement enhances its mechanical strength and dimensional stability, making it ideal for high-pressure systems and demanding industrial machinery where seals are subjected to significant stress and potential wear. The Buna-N compound ensures excellent resistance to oils, fuels, and many chemicals.

🧊 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, dry, and free of debris. 2. Carefully stretch the O-ring over the smaller diameter of the mating part or into the groove, avoiding excessive stretching or the use of sharp tools. 3. Verify the O-ring is properly seated within the groove and is not twisted or pinched.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

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 / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using a tool that nicks or cuts the O-ring during installation.Employ a smooth, rounded installation tool or use finger pressure to seat the O-ring, ensuring no sharp edges contact the seal.
Over-stretching the O-ring, leading to premature failure.Install the O-ring with the minimum necessary stretch, ensuring it fits snugly within the groove without deformation.

Common Applications

  • Hydraulic systems
  • Pneumatic cylinders
  • Fuel and oil lines
  • General industrial machinery

⚠️ Engineering Warnings

  • Not suitable for use with ozone, ketones, or esters.
  • Avoid prolonged exposure to direct sunlight or UV radiation.

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 cylinders, Fuel and oil lines, General industrial machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 6.656"CS = 0.203"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.