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

Industrial O-Ring: Buna-N, Polycarbonate, 7.046" ID x 1.310" OD

Expert Overview

This industrial O-ring, constructed from durable Buna-N with a polycarbonate housing, offers superior sealing performance. Its precise dimensions ensure a tight fit in critical applications.

StandardASME B18
MaterialPolycarbonate
FinishAnodized
GradeN/A
Inside Diameter7.046"
Outside Diameter1.310"
Cross Section0.195"

Detailed Engineering Specifications

Specified by design engineers worldwide, this Buna-N O-ring features a nominal Inside Diameter of 7.046 inches, an Outside Diameter of 1.310 inches, and a Cross Section of 0.195 inches. The robust Buna-N material provides excellent resistance to oils, fuels, and many hydraulic fluids, making it ideal for demanding industrial environments. The inherent properties of Buna-N also contribute to good abrasion resistance and a wide operating temperature range, ensuring reliable sealing across diverse applications.

🧊 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 is clean, free of debris, and properly lubricated with a compatible lubricant. 2. Carefully install the O-ring into the groove, avoiding stretching or twisting. 3. Apply even pressure to seat the O-ring fully within the groove before assembling mating components.

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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Overtightening the gland assembly, causing excessive compression and premature failure of the O-ring.Adhere strictly to recommended gland design and assembly torque specifications to prevent over-compression.
Using incompatible lubricants or cleaning agents that degrade the Buna-N material.Consult chemical compatibility charts and use only lubricants and cleaning agents approved for Buna-N applications.

Common Applications

  • Hydraulic Systems
  • Pneumatic Actuators
  • Automotive Fuel Systems

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents or polar solvents.
  • Operating temperature limits must be observed to maintain material integrity and sealing performance.

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 Actuators, Automotive Fuel Systems.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.046"CS = 0.195"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.