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Buna-N Carbon Steel O-Ring - 7.115" ID x 1.685" OD

Expert Overview

This industrial-grade Buna-N O-ring, constructed with a robust carbon steel core, offers superior sealing performance. Engineered for reliability in demanding applications, ensuring leak-free operation.

StandardASTM A106
MaterialCarbon Steel
FinishPassivated
GradeN/A
Inside Diameter7.115"
Outside Diameter1.685"
Cross Section0.078"

Detailed Engineering Specifications

Manufactured under strict quality controls, this Buna-N O-ring features a precise inside diameter of 7.115 inches, an outside diameter of 1.685 inches, and a critical cross-section of 0.078 inches. The carbon steel core provides enhanced structural integrity and resistance to deformation under pressure. Buna-N (Nitrile Butadiene Rubber) offers excellent resistance to oils, fuels, hydraulic fluids, and general chemicals, making this O-ring suitable for a wide range of industrial sealing challenges.

🧊 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:Yes

Installation Procedure

1. Inspect the groove and mating surfaces for cleanliness and damage. 2. Carefully install the O-ring into the designated groove, ensuring no twisting or stretching. 3. Verify proper seating and compression of the O-ring within the groove before assembly.

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

Chemical Composition

Carbon (C)0.28 - 0.55%
Manganese (Mn)0.60 - 0.90%
Phosphorus (P)0.04% max
Sulfur (S)0.05% max

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 or deformation.Apply gentle, even pressure during installation. Utilize appropriate tools if necessary to avoid direct contact with sealing surfaces.
Incorrect O-ring size selection for the groove, resulting in improper sealing or premature failure.Always verify O-ring dimensions against groove specifications and application requirements. Consult dimensional charts and application guides.

Common Applications

  • Hydraulic systems
  • Pneumatic systems
  • Automotive seals
  • General industrial machinery

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications exceeding Buna-N's operational limits.
  • Avoid exposure to ozone, strong acids, and certain polar solvents which can degrade 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 Carbon Steel.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic systems, Automotive seals, General industrial machinery.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.115"CS = 0.078"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.