PartsTable TECHNICAL DATA SHEET
NSN 2990-01-261-7978Government record, cited

Switch, Engine Temperature, Automo2990-01-261-7978

NSN 2990-01-261-7978 · NIIN 012617978 · Part number SW2139
Ford Motor Craft · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 01637
Government record, cited
NSN 2990-01-261-7978 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-261-7978. Manufacturer of record part number: SW2139.
Also searched as  2990-01-261-7978 · 2990012617978 · NIIN 012617978 · 01-261-7978 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 01637 · SW2139 · SW1426-B · E7HZ-10884-A · E1HZ10884-C · D8HZ-10884-A
Nearby stock numbers  ·
Features
  • Switch,engine Temperature,automo — FSC 2990
  • General Characteristics Item Description: 210 DEG TEMPERATURE
  • 1 manufacturer part number on file
  • Manufacturer of record: Ford Motor Craft
Identification
  • NSN: 2990-01-261-7978
  • NIIN: 012617978
  • FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
  • FSG: 29 — Engine Accessories
  • Primary part number: SW2139
  • Manufacturer: Ford Motor Craft
General Description

The Switch,engine Temperature,automo, cataloged under National Stock Number 2990-01-261-7978, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Ford Motor Craft. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-01-261-7978
Primary Part NumberSW2139
Item NameSwitch,engine Temperature,automo
FSC / FSG2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
ManufacturerFord Motor Craft
StatusACTIVE
General Characteristics Item Description210 DEG TEMPERATURE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
SW2139 PRIMARY Ford Motor Craft (USA)
Reference documents
ReferenceMeaning
SW1426-B 5/9 Secondary reference
Ford Motor Craft
E7HZ-10884-A 5/9 Secondary reference
Ford Motor Company
E1HZ10884-C 5/9 Secondary reference
Ford Motor Co Ford Parts and Service Div Government Part Sales
D8HZ-10884-A 5/9 Secondary reference
Ford Motor Co Ford Parts and Service Div Government Part Sales
E1HZ-10884-A 5/9 Secondary reference
Ford Motor Co Ford Parts and Service Div Government Part Sales
E7HZ-10884-A 5/9 Secondary reference
Ford Motor Co Ford Parts and Service Div Government Part Sales
SW1426B-210 DEG. 5/9 Secondary reference
Ford Motor Craft
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.
2990-00-096-8607
CONTROL ASSEMBLY,PUSH-PULL
2990-00-390-3445
CRANK,HAND,VEHICULAR
2990-00-459-7255
MUFFLER,EXHAUST
2990-00-459-7255
MUFFLER,EXHAUST
2990-00-536-2962
BLOCK,ADJUSTING SCREW
2990-00-903-8226
MUFFLER,EXHAUST
2990-01-151-5443
CONNECTOR,EXHAUST PIPE
2990-01-151-5443
CONNECTOR,EXHAUST PIPE

Frequently Asked Questions

What is NSN 2990-01-261-7978?

NSN 2990-01-261-7978 is a Switch,engine Temperature,automo, manufactured by Ford Motor Craft, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-261-7978?

NSN 2990-01-261-7978 has 1 manufacturer part number on file: SW2139 (Ford Motor Craft).

What are the specifications of SW2139?

Key specifications for SW2139: General Characteristics Item Description: 210 DEG TEMPERATURE; End Item Identification: FORD 1981 HEAVY DUTY TRUCK MODEL F600. 1 specification is documented in the U.S. Government catalog.

Is NSN 2990-01-261-7978 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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