PartsTable TECHNICAL DATA SHEET
NSN 5945-00-249-9804Government record, cited

Relay, Thermal5945-00-249-9804

NSN 5945-00-249-9804 · NIIN 002499804 · Part number 645941-2
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · FSC 5945 — Relays and Solenoids · FSG 59 — Electrical and Electronic Equipment Components · CAGE 10001
Government record, cited
NSN 5945-00-249-9804 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-249-9804. Manufacturer of record part number: 645941-2.
Also searched as  5945-00-249-9804 · 5945002499804 · NIIN 002499804 · 00-249-9804 · FSC 5945 Relays and Solenoids · CAGE 10001 · 645941-2 · 6C45K
Nearby stock numbers  ·
Features
  • Relay,thermal — FSC 5945
  • Mounting Facility Type and Quantity: 1 OCTAL BASE PLUG-IN
  • Contact Maximum Voltage Rating in Volts: 115.0 AC
  • Delay Time in Seconds: 30.0 ADJUSTABLE OPERATE MINIMUM AND 50.0 ADJUSTABLE OPERATE MAXIMUM
  • Contact Arrangement: SINGLE POLE, SINGLE THROW, NORMALLY CLOSED
  • Overall Diameter: 1.250 INCHES NOMINAL IN
  • Heater Power Rating in Watts: 2.0
  • Heater Voltage Rating in Volts: 6.3
Identification
  • NSN: 5945-00-249-9804
  • NIIN: 002499804
  • FSC: 5945 — Relays and Solenoids
  • FSG: 59 — Electrical and Electronic Equipment Components
  • Primary part number: 645941-2
  • Manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
General Description

The Relay,thermal, cataloged under National Stock Number 5945-00-249-9804, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-249-9804
Primary Part Number645941-2
Item NameRelay,thermal
FSC / FSG5945 / 59 — Relays and Solenoids
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Mounting Facility Type and Quantity1 OCTAL BASE PLUG-IN
Contact Maximum Voltage Rating in Volts115.0 AC
Delay Time in Seconds30.0 ADJUSTABLE OPERATE MINIMUM AND 50.0 ADJUSTABLE OPERATE MAXIMUM
Contact ArrangementSINGLE POLE, SINGLE THROW, NORMALLY CLOSED
Overall Diameter1.250 INCHES NOMINAL IN
Heater Power Rating in Watts2.0
Heater Voltage Rating in Volts6.3
Contact Maximum Current Rating in Amps3.0 AC
Environmental ProtectionHERMETIC
Terminal Type and Quantity8 PIN
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
645941-2 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
6C45K Amperite Co Inc (USA)
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 5945-00-249-9804?

NSN 5945-00-249-9804 is a Relay,thermal, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5945, Relays and Solenoids. Status: active.

What part numbers are listed for NSN 5945-00-249-9804?

NSN 5945-00-249-9804 has 2 manufacturer part numbers on file: 645941-2 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 6C45K (Amperite Co Inc).

What are the specifications of 645941-2?

Key specifications for 645941-2: Mounting Facility Type and Quantity: 1 OCTAL BASE PLUG-IN; Contact Maximum Voltage Rating in Volts: 115.0 AC; Delay Time in Seconds: 30.0 ADJUSTABLE OPERATE MINIMUM AND 50.0 ADJUSTABLE OPERATE MAXIMUM; Contact Arrangement: SINGLE POLE, SINGLE THROW, NORMALLY CLOSED. 10 specifications are documented in the U.S. Government catalog.

Is NSN 5945-00-249-9804 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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