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Industrial O-Ring, Buna-N, 316 SS, 7.155" ID x 4.065" OD

Expert Overview

Engineered for robust performance, this industrial O-ring, constructed from resilient Buna-N and a 316 stainless steel housing, ensures reliable sealing in challenging environments. Its precise dimensions guarantee a secure fit for critical applications.

StandardASTM A106
Material316 Stainless Steel
FinishGalvanized
GradeN/A
Inside Diameter7.155"
Outside Diameter4.065"
Cross Section0.140"

Detailed Engineering Specifications

Trusted by engineers across multiple sectors, this industrial O-ring is meticulously crafted for superior sealing performance. Featuring a Buna-N elastomeric element housed within a corrosion-resistant 316 stainless steel casing, it offers exceptional durability and chemical resistance. The precise specifications include an Inside Diameter of 7.155 inches, an Outside Diameter of 4.065 inches, and a Cross Section of 0.140 inches, making it ideal for high-pressure hydraulic systems, chemical processing equipment, and demanding automotive applications where integrity and longevity are paramount.

🧊 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. Ensure the mating groove is clean and free of debris. 2. Carefully stretch the O-ring over the component, avoiding excessive force or sharp tools. 3. Seat the O-ring fully within the groove to achieve a proper seal.

Equivalent Standards (Cross-Reference)

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

Mechanical Properties

Tensile Strength75,000 psi (515 MPa)
Yield Strength30,000 psi (205 MPa)
Elongation in 2 in.40% min
HardnessRockwell B95 max

Chemical Composition

Carbon (C)0.08% max
Chromium (Cr)16.0 - 18.0%
Nickel (Ni)10.0 - 14.0%
Molybdenum (Mo)2.0 - 3.0%

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1500°F (815°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 / SaltwaterExcellent
Chemical / AcidicGood

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Using a sharp object to install the O-ring, causing nicks or cuts.Employ a plastic or brass installation tool, or use finger pressure only, to prevent damage to the O-ring.
Installing the O-ring in a dirty or contaminated groove.Thoroughly clean the groove and surrounding components before installation to ensure a leak-free seal.

Common Applications

  • Hydraulic Systems
  • Chemical Processing Equipment
  • Automotive Applications

⚠️ Engineering Warnings

  • Ensure compatibility of Buna-N with the specific fluid or chemical being used.
  • Avoid exposure to extreme temperatures beyond the material's rated limits.

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 316 Stainless Steel.

Q: What are the main applications?

A: Hydraulic Systems, Chemical Processing Equipment, Automotive Applications.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 7.155"CS = 0.140"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.