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Technical Data Sheet
1189-1 ITEM 4 ✓ 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 MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include end_item_identification: PART OF POWER UNLOADER ASSEMBLY; W/S TICONDEROGA CLASS CG (47). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-01-442-8158, 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
1189-1 ITEM 4
NSN: 3040-01-442-8158
FSC: 3040
CAGE: 30793 — INSINGER MACHINE CO (USA)
SPECIFICATIONS
end_item_identificationPART OF POWER UNLOADER ASSEMBLY; W/S TICONDEROGA CLASS CG (47)
NSN3040-01-442-8158
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,DIGITAL TITLE COMPONENT PN 1189-1 ITEM 4 MFR MICROCIRCUIT,DIGITAL
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESINCLUDES P/N 1189-22 FOLLOWER SHAFT BRACKET; P/N 969-27 FOLLOWER SHAFT; P/N 512-206A SPROCKET; P/N D-586 BUSHING; P/N D-2-525 WASHER (2) P/N D-311-1 COTTER PIN 1/8 X 1 1/2 S/S (2); P/N 951-51 SCREW ADJUSTMENT (2) A
END ITEM IDENTIFICATIONPART OF POWER UNLOADER ASSEMBLY; W/S TICONDEROGA CLASS CG (47)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
118-91Interchangeable
interchangeable cross-reference
interchangeable
SM-B-157447-2Interchangeable
interchangeable cross-reference
interchangeable
53246Interchangeable
interchangeable cross-reference
interchangeable
18759WInterchangeable
interchangeable cross-reference
interchangeable
118925Interchangeable
interchangeable cross-reference
interchangeable
955640Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1189-1 ITEM 4?
1189-1 ITEM 4 is a MICROCIRCUIT,DIGITAL.
What parts can replace 1189-1 ITEM 4?
There are 17 known substitutes for 1189-1 ITEM 4: 118-91, SM-B-157447-2, 53246 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1189-1 ITEM 4?
1189-1 ITEM 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-01-442-8158. This indicates validated use in U.S. government and defense supply chains.
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