PartsTable TECHNICAL DATA SHEET
NSN 5945-01-566-2971Government record, cited

Relay, Electromagnetic5945-01-566-2971

NSN 5945-01-566-2971 · NIIN 015662971 · Part number 140-9378
Caterpillar Inc Div Caterpillar Defense · FSC 5945 — Relays and Solenoids · FSG 59 — Electrical and Electronic Equipment Components · CAGE 11083
Government record, cited
NSN 5945-01-566-2971 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-566-2971. Manufacturer of record part number: 140-9378.
Also searched as  5945-01-566-2971 · 5945015662971 · NIIN 015662971 · 01-566-2971 · FSC 5945 Relays and Solenoids · CAGE 11083 · 140-9378
Nearby stock numbers  ·
Features
  • Relay,electromagnetic — FSC 5945
  • Main Contact Maximum Voltage Rating in Volts: 12.0 DC
  • 4 manufacturer part numbers on file
  • Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
  • NSN: 5945-01-566-2971
  • NIIN: 015662971
  • FSC: 5945 — Relays and Solenoids
  • FSG: 59 — Electrical and Electronic Equipment Components
  • Primary part number: 140-9378
  • Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-566-2971, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-01-566-2971
Primary Part Number140-9378
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — Relays and Solenoids
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Main Contact Maximum Voltage Rating in Volts12.0 DC
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
140-9378 Hastings Deering (aust) Pty Ltd (AUS)
140-9378 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
140-9378 Westrac Equipment Pty Ltd (AUS)
140-9378 William Adams Pty Ltd (AUS)
No interchangeability data on file.
Other items in FSC 5945 — Relays and Solenoids
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5945-00-000-0093
5945-00-000-0093 · Item name not on file
5945-00-001-1891
5945-00-001-1891 · Item name not on file
5945-00-001-2622
PLATE,RELAY
5945-00-001-2795
RELAY,ELECTROMAGNETIC
5945-00-001-2806
RELAY,REED
5945-00-001-2938
5945-00-001-2938 · Item name not on file
5945-00-001-3015
RELAY ASSEMBLY
5945-00-001-3016
PROTECTOR,OVERLOAD

Frequently Asked Questions

What is NSN 5945-01-566-2971?

NSN 5945-01-566-2971 is a Relay,electromagnetic, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5945, Relays and Solenoids. Status: active.

What part numbers are listed for NSN 5945-01-566-2971?

NSN 5945-01-566-2971 has 4 manufacturer part numbers on file: 140-9378 (Hastings Deering (aust) Pty Ltd), 140-9378 (Caterpillar Inc Div Caterpillar Defense), 140-9378 (Westrac Equipment Pty Ltd), 140-9378 (William Adams Pty Ltd).

What are the specifications of 140-9378?

Key specifications for 140-9378: Main Contact Maximum Voltage Rating in Volts: 12.0 DC; Special Features: RELAY-MINI PG 45 12VOLT; End Item Identification: 202-0030 WIRING GP PLATFORM S/N FGH268-579. 1 specification is documented in the U.S. Government catalog.

Is NSN 5945-01-566-2971 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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