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Technical Data Sheet
1977331 ✓ 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 SEMICONDUCTOR DEVICE SET is a the manufacturer industrial component. Key specifications include end_item_identification: GMC CORP LIGHT DUTY TRUCK,1981-86, general_characteristics_item_description: W/POLE PIECE AND PLATE; PART OF SOLID STATE IGNITION 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 2920-01-248-3989, 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
1977331
NSN: 2920-01-248-3989
FSC: 2920
CAGE: 11862 — GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT (USA)
SPECIFICATIONS
end_item_identificationGMC CORP LIGHT DUTY TRUCK,1981-86
general_characteristics_item_descriptionW/POLE PIECE AND PLATE; PART OF SOLID STATE IGNITION SYSTEM
NSN2920-01-248-3989
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SEMICONDUCTOR DEVICE SET TITLE COMPONENT PN 1977331 MFR SEMICONDUCTOR DEVICE S
KEY FEATURES
GENERAL CHARACTERISTICS ITEM DESCRIPTION: W/POLE PIECE AND PLATE; PART OF SOLID STATE IGNITION SYSTEM
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONGMC CORP LIGHT DUTY TRUCK,1981-86
GENERAL CHARACTERISTICS ITEM DESCRIPTIONW/POLE PIECE AND PLATE; PART OF SOLID STATE IGNITION SYSTEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
D1955Interchangeable
interchangeable cross-reference
interchangeable
H845Interchangeable
interchangeable cross-reference
interchangeable
S3529GInterchangeable
interchangeable cross-reference
interchangeable
D1954Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1977331?
1977331 is a SEMICONDUCTOR DEVICE SET.
What parts can replace 1977331?
There are 4 known substitutes for 1977331: D1955, H845, S3529G and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1977331?
1977331 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2920-01-248-3989. This indicates validated use in U.S. government and defense supply chains.
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