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

316 Stainless Steel Buna-N O-Ring | 1.862" ID x 1.609" OD

Expert Overview

This industrial O-ring features a robust 316 stainless steel construction with a Buna-N sealing element. Engineered for reliable performance in challenging applications requiring chemical resistance and durability.

StandardASTM A106
Material316 Stainless Steel
FinishBlack Oxide
GradeN/A
Inside Diameter1.862"
Outside Diameter1.609"
Cross Section0.078"

Detailed Engineering Specifications

A high-performance industrial component, this Buna-N O-ring is constructed with a premium 316 stainless steel housing, offering exceptional corrosion resistance and mechanical strength. Its precise dimensions of 1.862" inside diameter, 1.609" outside diameter, and 0.078" cross-section ensure a tight seal against leaks in critical fluid and gas systems. The Buna-N elastomer provides excellent resistance to oils, fuels, and many hydraulic fluids, making it suitable for a wide range of industrial applications where reliability 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. Clean the mating groove and sealing surfaces thoroughly to remove any debris or contaminants. 2. Carefully inspect the O-ring for nicks, cuts, or other defects before installation. 3. Gently install the O-ring into its designated groove, ensuring it is seated correctly and not twisted.

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 damaged or defective O-ring.Always visually inspect the O-ring for any signs of wear or damage before installation. Replace if any imperfections are found.
Overtightening fasteners, leading to O-ring extrusion or damage.Adhere to recommended torque specifications for the assembly. Overtightening can deform the O-ring and compromise its sealing capability.
Installing the O-ring dry in a non-lubricated system.Apply a compatible lubricant to the O-ring and mating surfaces to facilitate installation and prevent damage during assembly. Ensure the lubricant is compatible with the O-ring material and the media.

Common Applications

  • Hydraulic systems
  • Pneumatic assemblies
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Ensure compatibility of Buna-N with the specific media and operating temperatures.
  • Avoid exposure to ozone, UV, or high-temperature steam 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 316 Stainless Steel.

Q: What are the main applications?

A: Hydraulic systems, Pneumatic assemblies, Chemical processing equipment.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 1.862"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.