PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21805Switch,thermostatic

L3 Technologies, Inc. Div Communication Systems-East · NSN 5930-00-023-1924 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-023-1924 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-023-1924. Primary manufacturer part number: 21805.
Features
  • Switch,thermostatic — FSC 5930
  • Contact Voltage Rating in Volts: 120.0 AC AT SEA LEVEL SINGLE VOLTAGE
  • Contact Adjustment Range: +50.00 TO 150.00 ACTUATION POINT DEGREES CELSIUS AND +50.00 TO 150.00 DEACTUATION POINT DEGREES CELSIUS
  • Terminal Type: WIRE LEAD
  • Body Diameter: 0.498 INCHES NOMINAL IN
  • Temp Sensing Element Type: BULB
  • Thread Quantity Per Inch: 18 SINGLE THREADED BUSHING
  • Contact Load Current Rating: 5.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,thermostatic, cataloged under National Stock Number 5930-00-023-1924, 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 L3 Technologies, Inc. Div Communication Systems-East. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-023-1924
Primary Part Number21805
Item NameSwitch,thermostatic
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerL3 Technologies, Inc. Div Communication Systems-East
StatusACTIVE
Contact Voltage Rating in Volts120.0 AC AT SEA LEVEL SINGLE VOLTAGE
Contact Adjustment Range+50.00 TO 150.00 ACTUATION POINT DEGREES CELSIUS AND +50.00 TO 150.00 DEACTUATION POINT DEGREES CELSIUS
Terminal TypeWIRE LEAD
Body Diameter0.498 INCHES NOMINAL IN
Temp Sensing Element TypeBULB
Thread Quantity Per Inch18 SINGLE THREADED BUSHING
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
Bulb Diameter0.688 INCHES NOMINAL IN
Features ProvidedTUBING END SEAL CONNECTION
Media for Which DesignedGAS
Contact Adjustment TypeINTERNAL DEACTUATION POINT SCREW AND INTERNAL ACTUATION POINT SCREW
Nonpile-Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Thread Length1.345 INCHES NOMINAL SINGLE THREADED BUSHING IN
Width Across Flats0.688 INCHES NOMINAL IN
Bulb Length2.000 INCHES NOMINAL IN
Thread Series DesignatorNPT SINGLE THREADED BUSHING
Style DesignatorCYLINDRICAL W/FLANGE
Contact Stimulus Rating100.00 ACTUATION POINT NOMINAL DEGREES CELSIUS AND 32.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
Contact Action StimulusINCREASE
Mounting MethodTHREADED BUSHING
Body Length2.500 INCHES NOMINAL IN
Contact AdjustabilityDEACTUATION POINT ADJUSTABLE, PRESET AND ACTUATION POINT ADJUSTABLE, PRESET
Nominal Thread Size0.375 INCHES SINGLE THREADED BUSHING IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6625-00-376-510521805 INTERCHANGEABLE
Ohmmeter
Avo Intl
3110-00-969-4391JH16160H INTERCHANGEABLE
Bearing,roller,needle
Timken Aerospace, Inc Dba Torrington Product
5910-00-983-5388 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
5950-01-029-5242 INTERCHANGEABLE
Coil,electrical
5998-01-074-2465 INTERCHANGEABLE
Circuit Card Assembly
6105-01-142-617712002351 INTERCHANGEABLE
Motor,alternating Current
Maytag Corporation Dba Maytag Appliancessales
5961-01-169-4679 INTERCHANGEABLE
Transistor
5315-01-417-984421805 INTERCHANGEABLE
Pin,shoulder,headless
Elbitamerica, Inc.
3040-01-479-556921805-1003-1 INTERCHANGEABLE
Shaft,shouldered
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
3040-01-479-557121805-1004-1 INTERCHANGEABLE
Shaft,shouldered
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21805 PRIMARY L3 Technologies, Inc. Div Communication Systems-East (USA)
1E1C2 Vulcan Electric Co Div Vulcan Electric Company (USA)
21805 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
Related Parts
6625-00-376-5105INTERCHANGEABLE
OHMMETER
21805
3110-00-969-4391INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
JH16160H
5910-00-983-5388INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
5950-01-029-5242INTERCHANGEABLE
COIL,ELECTRICAL
5998-01-074-2465INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6105-01-142-6177INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
12002351
5961-01-169-4679INTERCHANGEABLE
TRANSISTOR
5315-01-417-9844INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
21805
3040-01-479-5569INTERCHANGEABLE
SHAFT,SHOULDERED
21805-1003-1
3040-01-479-5571INTERCHANGEABLE
SHAFT,SHOULDERED
21805-1004-1
5110-01-489-5799INTERCHANGEABLE
CUTTER,BOILER TUBE

Frequently Asked Questions

What is NSN 5930-00-023-1924?

NSN 5930-00-023-1924 is a Switch,thermostatic, manufactured by L3 Technologies, Inc. Div Communication Systems-East, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-023-1924?

NSN 5930-00-023-1924 has 3 cross-referenced part numbers: 21805 (L3 Technologies, Inc. Div Communication Systems-East), 1E1C2 (Vulcan Electric Co Div Vulcan Electric Company), 21805 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin).

What NSN replaces 5930-00-023-1924?

There are 11 known substitutes for 5930-00-023-1924: 6625-00-376-5105, 3110-00-969-4391, 5910-00-983-5388 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21805?

Key specifications for 21805: Contact Voltage Rating in Volts: 120.0 AC AT SEA LEVEL SINGLE VOLTAGE; Contact Adjustment Range: +50.00 TO 150.00 ACTUATION POINT DEGREES CELSIUS AND +50.00 TO 150.00 DEACTUATION POINT DEGREES CELSIUS; Terminal Type: WIRE LEAD; Body Diameter: 0.498 INCHES NOMINAL IN. 24 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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