PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

601BRelay,thermal

Cooper Industries Inc Champion Aviation Products · NSN 5945-00-243-9170 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-243-9170 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-243-9170. Primary manufacturer part number: 601B.
Features
  • Relay,thermal — FSC 5945
  • Contact Maximum Current Rating in Amps: 2.0 AC
  • Contact Maximum Voltage Rating in Volts: 10.0 AC
  • Environmental Protection: HERMETIC
  • Mounting Facility Type and Quantity: 1 OCTAL BASE PLUG-IN
  • Delay Time in Seconds: 0.5 FIXED OPERATE MINIMUM AND 1.5 FIXED RELEASE MAXIMUM
  • Terminal Type and Quantity: 8 PIN
  • Heater Voltage Rating in Volts: 10.0
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,thermal, cataloged under National Stock Number 5945-00-243-9170, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Cooper Industries Inc Champion Aviation Products. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-243-9170
Primary Part Number601B
Item NameRelay,thermal
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerCooper Industries Inc Champion Aviation Products
StatusCANCELLED
Contact Maximum Current Rating in Amps2.0 AC
Contact Maximum Voltage Rating in Volts10.0 AC
Environmental ProtectionHERMETIC
Mounting Facility Type and Quantity1 OCTAL BASE PLUG-IN
Delay Time in Seconds0.5 FIXED OPERATE MINIMUM AND 1.5 FIXED RELEASE MAXIMUM
Terminal Type and Quantity8 PIN
Heater Voltage Rating in Volts10.0
Contact ArrangementSINGLE POLE, SINGLE THROW, NORMALLY CLOSED
Overall Diameter1.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
6625-00-600-4147601B INTERCHANGEABLE
Pressure Sensor
Honeywell International Inc. Dba Honeywell Div Aerospace ? Redmond Commercial
5985-00-729-5374601B INTERCHANGEABLE
Adapter,waveguide
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
Cross-Reference Index
Part NumberManufacturer
601B Cooper Industries Inc Champion Aviation Products (USA)
Related Parts
6625-00-600-4147INTERCHANGEABLE
PRESSURE SENSOR
601B
5985-00-729-5374INTERCHANGEABLE
ADAPTER,WAVEGUIDE
601B

Frequently Asked Questions

What is NSN 5945-00-243-9170?

NSN 5945-00-243-9170 is a Relay,thermal, manufactured by Cooper Industries Inc Champion Aviation Products, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-243-9170?

NSN 5945-00-243-9170 has 1 cross-referenced part number: 601B (Cooper Industries Inc Champion Aviation Products).

What NSN replaces 5945-00-243-9170?

There are 2 known substitutes for 5945-00-243-9170: 6625-00-600-4147, 5985-00-729-5374. Verify interchangeability with system specifications before substitution.

What are the specifications of 601B?

Key specifications for 601B: Overall Length: 2.812 INCHES NOMINAL IN; Contact Maximum Current Rating in Amps: 2.0 AC; Contact Maximum Voltage Rating in Volts: 10.0 AC; Environmental Protection: HERMETIC. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-243-9170 still in active supply?

NSN 5945-00-243-9170 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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