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123-39 ✓ 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 ENGINE BLOCK ASSEMBLY,DIESEL is a the manufacturer industrial component. Key specifications include end_item_identification: F/A-22 RAPTOR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4520-00-068-0294, 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
123-39
NSN: 4520-00-068-0294
FSC: 4520
CAGE: 10639 — AVIONICS SPECIALTIES, INC. (USA)
SPECIFICATIONS
end_item_identificationF/A-22 RAPTOR
NSN4520-00-068-0294
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ENGINE BLOCK ASSEMBLY,DIESEL TITLE COMPONENT PN 123-39 MFR ENGINE BLOCK ASSEMBLY,
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
MIL-HDBK-300(PME)Interchangeable
interchangeable cross-reference
interchangeable
4310Interchangeable
interchangeable cross-reference
interchangeable
3981Interchangeable
interchangeable cross-reference
interchangeable
BT3981Interchangeable
interchangeable cross-reference
interchangeable
1227-4310Interchangeable
interchangeable cross-reference
interchangeable
9230Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 123-39?
123-39 is a ENGINE BLOCK ASSEMBLY,DIESEL.
What parts can replace 123-39?
There are 23 known substitutes for 123-39: MIL-HDBK-300(PME), 4310, 3981 and 20 more. Substitute compatibility should be verified for your specific system.
Is 123-39 still available?
123-39 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