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

Buna-N O-Ring, 304 Stainless Steel, 0.897" ID

Expert Overview

Engineered for robust sealing, this Buna-N O-ring, encased in durable 304 stainless steel, offers exceptional resistance to a wide range of chemicals and temperatures. Its precise dimensions ensure reliable performance in critical industrial environments.

StandardASME B18
Material304 Stainless Steel
FinishPassivated
GradeN/A
Inside Diameter0.897"
Outside Diameter0.262"
Cross Section0.156"

Detailed Engineering Specifications

Specified by design engineers worldwide, this industrial O-ring is manufactured with a Buna-N elastomer core for superior chemical and thermal resistance, housed within a precision-formed 304 stainless steel housing. The material combination provides excellent resilience and durability under pressure. Key dimensions include an Inside Diameter of 0.897 inches, an Outside Diameter of 0.262 inches, and a Cross Section of 0.156 inches, ensuring precise fitment in grooved applications. This design is optimized for hydraulic, pneumatic, and fluid sealing where contamination resistance and mechanical 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. Ensure mating groove surfaces are clean and free of debris. 2. Carefully compress the O-ring to fit into the groove, avoiding any twisting or stretching. 3. Confirm the O-ring is seated evenly and uniformly within the groove before assembly completion.

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)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°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 / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Overtightening during installation, leading to O-ring extrusion or damage.Apply appropriate torque specifications for the mating components, ensuring the O-ring is adequately compressed without excessive force.
Using incompatible cleaning solvents that degrade the Buna-N material.Refer to the material compatibility chart for Buna-N and use only recommended cleaning agents.

Common Applications

  • Hydraulic systems
  • Pneumatic actuators
  • Chemical processing equipment

⚠️ Engineering Warnings

  • Not suitable for use with strong oxidizing agents or certain aromatic hydrocarbons.
  • Operating temperature limits for Buna-N must be adhered to for optimal service life.

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 304 Stainless Steel.

Q: What are the main applications?

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

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 0.897"CS = 0.156"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.