PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39738Switch,thermostatic

Dar Electronics Inc Dba National Radio Co · NSN 5930-00-947-6557 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-947-6557 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-947-6557. Primary manufacturer part number: 39738.
Features
  • Switch,thermostatic — FSC 5930
  • Temp Sensing Element Type: INTERNAL SENSOR
  • Contact Stimulus Rating: 105.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 100.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
  • Longest Horizontal Distance Between Mounting Centers: 0.437 INCHES NOMINAL IN
  • Mounting Method: BASE
  • Body Length: 0.945 INCHES NOMINAL IN
  • Contact Voltage Rating in Volts: 115.0 AC AT SEA LEVEL SINGLE VOLTAGE
  • Contact Adjustability: ACTUATION POINT NOT ADJUSTABLE
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,thermostatic, cataloged under National Stock Number 5930-00-947-6557, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Dar Electronics Inc Dba National Radio Co. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-947-6557
Primary Part Number39738
Item NameSwitch,thermostatic
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerDar Electronics Inc Dba National Radio Co
StatusACTIVE
Temp Sensing Element TypeINTERNAL SENSOR
Contact Stimulus Rating105.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 100.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
Longest Horizontal Distance Between Mounting Centers0.437 INCHES NOMINAL IN
Mounting MethodBASE
Body Length0.945 INCHES NOMINAL IN
Contact Voltage Rating in Volts115.0 AC AT SEA LEVEL SINGLE VOLTAGE
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE
Body Width0.690 INCHES NOMINAL IN
Contact Load Current Rating3.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
Contact Action StimulusINCREASE
Body Height0.525 INCHES NOMINAL IN
Nonpile-Up Contact Arrangement1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5950-00-648-535623425 INTERCHANGEABLE
Transformer,power
L3harris Technologies, Inc Div Space & Airborne Systems
Cross-Reference Index
Part NumberManufacturer
39738 Dar Electronics Inc Dba National Radio Co (USA)
A397381 Meritor Heavy Vehicle Systems, Llc (USA)
A397381 Meritor Industrial Products, Llc (USA)
39738-1 Dar Electronics Inc Dba National Radio Co (USA)
A39738-1 Dar Electronics Inc Dba National Radio Co (USA)
Related Parts
5950-00-648-5356INTERCHANGEABLE
TRANSFORMER,POWER
23425

Frequently Asked Questions

What is NSN 5930-00-947-6557?

NSN 5930-00-947-6557 is a Switch,thermostatic, manufactured by Dar Electronics Inc Dba National Radio Co, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-947-6557?

NSN 5930-00-947-6557 has 5 cross-referenced part numbers: 39738 (Dar Electronics Inc Dba National Radio Co), A397381 (Meritor Heavy Vehicle Systems, Llc), A397381 (Meritor Industrial Products, Llc), 39738-1 (Dar Electronics Inc Dba National Radio Co), A39738-1 (Dar Electronics Inc Dba National Radio Co).

What NSN replaces 5930-00-947-6557?

There is 1 known substitute for 5930-00-947-6557: 5950-00-648-5356. Verify interchangeability with system specifications before substitution.

What are the specifications of 39738?

Key specifications for 39738: Temp Sensing Element Type: INTERNAL SENSOR; Contact Stimulus Rating: 105.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 100.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT; Longest Horizontal Distance Between Mounting Centers: 0.437 INCHES NOMINAL IN; Mounting Method: BASE. 12 total characteristics are documented in the Federal Logistics Information System.

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