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Technical Data Sheet
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4278/720 — Technical Data Sheet

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— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The ADAPTER,BASE MOUNTING is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: FLANGELESS, 4.0 INCH DIA. BASE; MOUNTS MODEL 1551B INTELLIGENT IONIZATION SENSOR HEAD IN.

This part is cataloged in the Federal Logistics Information System under NSN 6350-01-465-2193, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
4278/720
NSN: 6350-01-465-2193
FSC: 6350
CAGE: K3094 — GINGE-KERR (GBR)
SPECIFICATIONS
general_characteristics_item_descriptionFLANGELESS, 4.0 INCH DIA. BASE; MOUNTS MODEL 1551B INTELLIGENT IONIZATION SENSOR HEAD IN
NSN6350-01-465-2193
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ADAPTER,BASE MOUNTING TITLE COMPONENT PN 4278/720 MFR ADAPTER,BASE MOUNTING
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: FLANGELESS, 4.0 INCH DIA. BASE; MOUNTS MODEL 1551B INTELLIGENT IONIZATION SENSOR HEAD IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONFLANGELESS, 4.0 INCH DIA. BASE; MOUNTS MODEL 1551B INTELLIGENT IONIZATION SENSOR HEAD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
B501InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
13218E0479-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-DTL-52404InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
278/720InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1551BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
221-0577-00InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4278/720?
4278/720 is a ADAPTER,BASE MOUNTING.
What parts can replace 4278/720?
There are 11 known substitutes for 4278/720: B501, 13218E0479-3, MIL-DTL-52404 and 8 more. Substitute compatibility should be verified for your specific system.
Is 4278/720 still available?
4278/720 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026