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PartsTable / COMPONENT / 003644
003644 ✓ 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 INSULATING,CUSHION is a the manufacturer industrial component. Key specifications include material: PLASTIC OVERALL, end_item_identification: FAN,ZOELLER CO. MODEL 53.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2040-00-830-2621, 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
003644
NSN: 2040-00-830-2621
FSC: 2040
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
end_item_identificationFAN,ZOELLER CO. MODEL 53
NSN2040-00-830-2621
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available INSULATING,CUSHION TITLE COMPONENT PN 003644 MFR INSULATING,CUSHION
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: POLYTETRAFLUOROETHYLENE; 1.367 IN. MIN 1.372 IN. MAX DIA; 0.010 IN. THK IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONPOLYTETRAFLUOROETHYLENE; 1.367 IN. MIN 1.372 IN. MAX DIA; 0.010 IN. THK IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
5503Interchangeable
interchangeable cross-reference
interchangeable
003822Interchangeable
interchangeable cross-reference
interchangeable
003644Interchangeable
interchangeable cross-reference
interchangeable
A554-244RAPCALLInterchangeable
Same NIIN cross-reference
interchangeable
554A003644Interchangeable
Same NIIN cross-reference
interchangeable
554A003822Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 003644?
003644 is a INSULATING,CUSHION.
What parts can replace 003644?
There are 7 known substitutes for 003644: 5503, 003822, 003644 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 003644?
003644 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2040-00-830-2621. 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