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PartsTable / COMPONENT / A14-439
A14-439 ✓ 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 SWITCH,DAY AND NIGH is a the manufacturer industrial component. Key specifications include end_item_identification: FOR TRUCK PCCN C742AA;C744AA, general_characteristics_item_description: CONSISTS OF A QUARTZ ROD,P/N 7974219,FSCM 19207;ITEM IS 5.446 IN. LONG WITH A DIA OF 0.0937 IN IN.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2540-00-039-8086, 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
A14-439
NSN: 2540-00-039-8086
FSC: 2540
CAGE: 46522 — DCM MANUFACTURING, INC. (USA)
SPECIFICATIONS
end_item_identificationFOR TRUCK PCCN C742AA;C744AA
general_characteristics_item_descriptionCONSISTS OF A QUARTZ ROD,P/N 7974219,FSCM 19207;ITEM IS 5.446 IN. LONG WITH A DIA OF 0.0937 IN IN
NSN2540-00-039-8086
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,DAY AND NIGH TITLE COMPONENT PN A14-439 MFR SWITCH,DAY AND NIGH
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CONSISTS OF A QUARTZ ROD,P/N 7974219,FSCM 19207;ITEM IS 5.446 IN. LONG WITH A DIA OF 0.0937 IN IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCONSISTS OF A QUARTZ ROD,P/N 7974219,FSCM 19207;ITEM IS 5.446 IN. LONG WITH A DIA OF 0.0937 IN IN
END ITEM IDENTIFICATIONFOR TRUCK PCCN C742AA;C744AA
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
4330PL1622938Interchangeable
interchangeable cross-reference
interchangeable
3033355Interchangeable
interchangeable cross-reference
interchangeable
Z00.N7284510005TBMInterchangeable
interchangeable cross-reference
interchangeable
A14-439Interchangeable
interchangeable cross-reference
interchangeable
10952Interchangeable
interchangeable cross-reference
interchangeable
5298448Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A14-439?
A14-439 is a SWITCH,DAY AND NIGH.
What parts can replace A14-439?
There are 16 known substitutes for A14-439: 4330PL1622938, 3033355, Z00.N7284510005TBM and 13 more. Substitute compatibility should be verified for your specific system.
Is A14-439 still available?
A14-439 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