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Industrial Buna-N O-Ring 7.828" ID x 7.008" OD

Expert Overview

This industrial O-ring, constructed with a durable Nylon outer shell and Buna-N core, provides exceptional sealing performance. Engineered for resilience, it ensures reliable containment in demanding mechanical systems.

StandardDIN 933
MaterialNylon
FinishPassivated
GradeN/A
Inside Diameter7.828"
Outside Diameter7.008"
Cross Section0.135"

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this O-ring features an Inside Diameter of 7.828 inches, an Outside Diameter of 7.008 inches, and a Cross Section of 0.135 inches. The robust Nylon casing offers superior abrasion resistance and structural integrity, while the Buna-N (Nitrile Butadiene Rubber) core provides excellent resistance to oils, fuels, and hydraulic fluids. This combination makes it ideal for static and dynamic sealing in moderate-pressure systems subjected to harsh operating conditions, preventing leakage and ensuring system integrity.

🧊 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. Inspect the groove and mating surfaces for cleanliness and absence of damage. 2. Gently compress and insert the O-ring into its designated groove, ensuring no twisting or stretching. 3. Verify proper seating and seal integrity before applying system pressure.

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
Overtightening during installation, leading to compression set.Tighten fasteners only to the recommended torque specifications to avoid excessive compression.
Using an O-ring incompatible with the fluid or temperature.Always verify material compatibility with the specific application environment.

Common Applications

  • Hydraulic cylinders and pumps
  • Pneumatic systems
  • Oil and gas equipment

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications or exposure to strong oxidizing agents.
  • Ensure proper lubrication of mating surfaces during installation for ease of assembly and to prevent damage.

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 cylinders and pumps, Pneumatic systems, Oil and gas equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.828"CS = 0.135"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.