PartsTable TECHNICAL DATA SHEET

NSN 2990-01-520-5751Government record, cited

Sensor, Engine Coolant Temperatur2990-01-520-5751

NSN 2990-01-520-5751 · NIIN 015205751 · Part number 12639277

General Motors Llc Dba General Motors Llc · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 7X677

Government record, cited

NSN 2990-01-520-5751 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-520-5751. Manufacturer of record part number: 12639277.

Also searched as 2990-01-520-5751 · 2990015205751 · NIIN 015205751 · 01-520-5751 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 7X677 · 12639277 · 97384931 · 97261720

Nearby stock numbers ← 2990-01-520-5742 Muffler, Exhaust · 2990-01-520-5757 →

Features

Sensor,engine Coolant Temperatur — FSC 2990
1 manufacturer part number on file
Manufacturer of record: General Motors Llc Dba General Motors Llc

Identification

NSN: 2990-01-520-5751
NIIN: 015205751
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 12639277
Manufacturer: General Motors Llc Dba General Motors Llc

General Description

The Sensor,engine Coolant Temperatur, cataloged under National Stock Number 2990-01-520-5751, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is General Motors Llc Dba General Motors Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	2990-01-520-5751
Primary Part Number	12639277
Item Name	Sensor,engine Coolant Temperatur
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	General Motors Llc Dba General Motors Llc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
12639277 PRIMARY	General Motors Llc Dba General Motors Llc (USA)

Reference documents

Reference	Meaning
97384931	5/9 Secondary reference General Motors Llc Dba General Motors Llc
97261720	5/9 Secondary reference General Motors Llc Dba General Motors Llc

No interchangeability data on file.

Other items in FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2990-00-001-0001

BLOWER ASSEMBLY

2990-00-001-1248

2990-00-001-1248 · Item name not on file

2990-00-001-1250

2990-00-001-1250 · Item name not on file

2990-00-001-2055

2990-00-001-2055 · Item name not on file

2990-00-001-3498

2990-00-001-3498 · Item name not on file

2990-00-001-3520

2990-00-001-3520 · Item name not on file

2990-00-001-3521

2990-00-001-3521 · Item name not on file

2990-00-001-3522

CAP ASSEMBLY,MUFFLE

Frequently Asked Questions

What is NSN 2990-01-520-5751?

NSN 2990-01-520-5751 is a Sensor,engine Coolant Temperatur, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-520-5751?

NSN 2990-01-520-5751 has 1 manufacturer part number on file: 12639277 (General Motors Llc Dba General Motors Llc).

What are the specifications of 12639277?

Key specifications for 12639277: Special Features: USED ON ENGINE DIESEL, 6.6-1, V8, DIRECT INJECTION, TURBO, HO, ISUZU DURAMAX; End Item Identification: FUEL GROUP. 0 specifications are documented in the U.S. Government catalog.

Is NSN 2990-01-520-5751 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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