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Technical Data Sheet
PartsTable / MRO / M1644
M1644 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include special_features: CONTAINS MICROPHONE AMPLIFIER AND HEADSET AMPLIFIER; DIMENSIONS, 5.125 IN. X 3.625 IN.

X 4.625 IN. IN, end_item_identification: AIC-25 AIRCRAFT INTERCOMMUNICATION SYSTEM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4330-00-950-7092, 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
MRO→ MRO_GENERAL→ M1644
NSN: 4330-00-950-7092
FSC: 4330
CAGE: 98810 — AEROSONIC LLC (USA)
SPECIFICATIONS
special_featuresCONTAINS MICROPHONE AMPLIFIER AND HEADSET AMPLIFIER; DIMENSIONS, 5.125 IN. X 3.625 IN. X 4.625 IN. IN
end_item_identificationAIC-25 AIRCRAFT INTERCOMMUNICATION SYSTEM
NSN4330-00-950-7092
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,RADIO FREQUENCY INTERFERE TITLE COMPONENT PN M1644 MFR FILTER,RADIO FREQUENCY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
1644Interchangeable
interchangeable cross-reference
interchangeable
9743-B-0632-37Interchangeable
interchangeable cross-reference
interchangeable
8254Interchangeable
interchangeable cross-reference
interchangeable
482241Interchangeable
interchangeable cross-reference
interchangeable
1644AInterchangeable
interchangeable cross-reference
interchangeable
405004-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M1644?
M1644 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace M1644?
There are 17 known substitutes for M1644: 1644, 9743-B-0632-37, 8254 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M1644?
M1644 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4330-00-950-7092. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026