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

Buna-N O-Ring, 316 SS, 0.543" ID x 2.950" OD

Expert Overview

This industrial O-ring features a robust Buna-N sealing element encased in a corrosion-resistant 316 stainless steel housing. Engineered for reliable, leak-free performance across a wide range of demanding applications.

StandardASME B18
Material316 Stainless Steel
FinishZinc Plated
GradeN/A
Inside Diameter0.543"
Outside Diameter2.950"
Cross Section0.106"

Detailed Engineering Specifications

Manufactured under strict quality controls, this O-ring boasts an Inside Diameter of 0.543 inches and an Outside Diameter of 2.950 inches, with a precise 0.106 inch Cross Section. The Buna-N compound offers excellent resistance to oils, fuels, and many hydraulic fluids, while the 316 stainless steel casing provides superior corrosion resistance, especially in saltwater or chemical-intensive environments. This combination ensures reliable sealing and extended service life in high-pressure, high-temperature, and chemically aggressive conditions.

🧊 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 mating surfaces are clean, dry, and free of debris. 2. Lubricate the O-ring with a compatible lubricant to prevent tearing during installation. 3. Carefully place the O-ring into the designated groove, ensuring it is seated evenly and without twisting.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

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 excessive force during installation, leading to O-ring damage.Apply lubricant and gently press the O-ring into place, avoiding stretching or twisting.
Incorrectly sized O-ring for the groove or mating surfaces.Always verify O-ring dimensions against the application's groove specifications before installation.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Not recommended for use with strong oxidizing acids or ketones.
  • Ensure compatibility of all media and operating temperatures with Buna-N and 316 stainless steel.

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, Pneumatic equipment, Chemical processing equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 0.543"CS = 0.106"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.