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

Buna-N O-Ring, 316 SS, 2.272" ID x 2.311" OD

Expert Overview

Engineered for critical sealing applications, this Buna-N O-ring, housed within a robust 316 stainless steel casing, offers superior chemical resistance and mechanical integrity. Its precise dimensions ensure a reliable, leak-free seal.

StandardASME B18
Material316 Stainless Steel
FinishPlain
GradeN/A
Inside Diameter2.272"
Outside Diameter2.311"
Cross Section0.093"

Detailed Engineering Specifications

Specified by design engineers worldwide, this industrial O-ring features a Buna-N elastomer core for excellent resistance to oils, fuels, and many hydraulic fluids, coupled with a 316 stainless steel casing for enhanced structural support and corrosion resistance. The precise dimensions of 2.272" inside diameter, 2.311" outside diameter, and a 0.093" cross-section ensure a tight, reliable seal in demanding environments subjected to moderate pressures and temperatures. This construction is ideal for dynamic and static seal applications where media compatibility and physical integrity 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 sealing surfaces thoroughly to remove any debris or lubricant. 2. Carefully position the O-ring within the designated groove, ensuring it is not twisted. 3. Apply a light, compatible lubricant if necessary to facilitate insertion and prevent damage during assembly.

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
Overtightening fasteners, which can deform the O-ring and compromise the seal.Tighten fasteners to the manufacturer's recommended torque specifications, using a calibrated torque wrench.
Using incompatible lubricants or cleaning agents that degrade the Buna-N elastomer.Consult a chemical compatibility chart or the O-ring manufacturer's recommendations for approved lubricants and cleaning solutions.

Common Applications

  • Hydraulic systems
  • Pneumatic equipment
  • Fluid transfer lines

⚠️ Engineering Warnings

  • Not suitable for high-temperature applications exceeding Buna-N's recommended operating range.
  • Avoid exposure to strong oxidizing agents, ketones, esters, and chlorinated hydrocarbons, 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 equipment, Fluid transfer lines.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.272"CS = 0.093"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.