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Industrial O-Ring, Buna-N, 316 Stainless Steel, 2.756" ID

Expert Overview

Engineered for robust sealing, this Buna-N O-ring features a 316 stainless steel construction for superior corrosion resistance. Ideal for demanding industrial environments requiring reliable, long-lasting performance.

StandardISO 9001
Material316 Stainless Steel
FinishPlain
GradeN/A
Inside Diameter2.756"
Outside Diameter4.262"
Cross Section0.124"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this industrial O-ring boasts an inside diameter of 2.756 inches, an outside diameter of 4.262 inches, and a cross-section of 0.124 inches. The Buna-N elastomer offers excellent resistance to oils, fuels, and hydraulic fluids, while the 316 stainless steel housing provides exceptional strength, durability, and resistance to a wide range of corrosive media, including salt water and most organic and inorganic chemicals. This combination ensures reliable sealing performance in aggressive operating conditions and extreme temperatures.

🧊 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 sealing groove is clean and free of debris. 2. Carefully position the O-ring within the groove, avoiding any stretching or twisting. 3. Apply a light, compatible lubricant to the O-ring and mating surfaces if recommended for the application.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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
Overtightening fasteners, crushing the O-ring and compromising the seal.Adhere to specified torque values for all fasteners. Use a torque wrench for accurate tightening.
Using a lubricant incompatible with Buna-N or the specific application media.Consult material compatibility charts and select a lubricant specifically recommended for Buna-N and the operational environment.

Common Applications

  • Hydraulic and pneumatic systems
  • Automotive and aerospace fuel systems
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Avoid exposure to ozone, strong acids, and polar solvents, as these can degrade Buna-N.
  • Ensure operating temperatures remain within the recommended limits for Buna-N to maintain sealing integrity.

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 and pneumatic systems, Automotive and aerospace fuel systems, Chemical processing equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.756"CS = 0.124"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.