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Technical Data Sheet
PartsTable / COMPONENT / 4165-21B25
4165-21B25 ✓ Verified by PartsTable
— · 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 4165-21B25 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6620-00-626-2604, 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
4165-21B25
NSN: 6620-00-626-2604
FSC: 6620
CAGE: 55972 — HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS (USA)
SPECIFICATIONS
Part Number4165-21B25
NSN6620-00-626-2604
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 4165-21B25 TITLE COMPONENT PN 4165-21B25 MFR 4165-21B25
KEY FEATURES
•
CONTACT QUANTITY: 4
•
MECHANICAL CONNECTION TYPE: INTERNAL PIPE
•
MECHANICAL CONNECTION QUANTITY: 2
•
MECHANICAL CONNECTION SIZE: 0.4375 IN. DIA IN
•
MEASUREMENT RANGE: +0.0 TO 100.0 POUNDS PRESSURE PER SQUARE INCH LBS
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MOUNTING METHOD: HOLE
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ELECTRICAL CONNECTION IDENTIFYING NUMBER: PART NO. AND10066-14S-2P
•
CONNECTOR CONTROLLING AGENCY: AND
TECHNICAL CHARACTERISTICS (FLIS)
CONTACT QUANTITY4
MECHANICAL CONNECTION TYPEINTERNAL PIPE
MECHANICAL CONNECTION QUANTITY2
MECHANICAL CONNECTION SIZE0.4375 IN. DIA IN
MEASUREMENT RANGE+0.0 TO 100.0 POUNDS PRESSURE PER SQUARE INCH LBS
MOUNTING METHODHOLE
ELECTRICAL CONNECTION IDENTIFYING NUMBERPART NO. AND10066-14S-2P
CONNECTOR CONTROLLING AGENCYAND
FREQUENCY RATING400.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED
FSC APPLICATION DATATRANSMITTER,PRESSURE,ENGINE INSTRUMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
T104833Interchangeable
interchangeable cross-reference
interchangeable
280052Interchangeable
interchangeable cross-reference
interchangeable
280031Interchangeable
interchangeable cross-reference
interchangeable
361950Interchangeable
interchangeable cross-reference
interchangeable
203566Interchangeable
interchangeable cross-reference
interchangeable
405569-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4165-21B25?
4165-21B25 is a 4165-21B25.
What parts can replace 4165-21B25?
There are 16 known substitutes for 4165-21B25: T104833, 280052, 280031 and 13 more. Substitute compatibility should be verified for your specific system.
Is 4165-21B25 still available?
4165-21B25 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: July 2026