PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21110-0Switch,thermostatic

Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems · NSN 5930-01-155-9876 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-155-9876 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-155-9876. Primary manufacturer part number: 21110-0.
Features
  • Switch,thermostatic — FSC 5930
  • Body Length: 3.281 INCHES NOMINAL IN
  • Contact Adjustment Type: EXTERNAL DEACTUATION POINT SCREW AND EXTERNAL ACTUATION POINT SCREW
  • Thread Series Designator: NPT SINGLE THREADED BUSHING
  • Contact Action Stimulus: INCREASE
  • Overall Diameter: 3.531 INCHES NOMINAL IN
  • Features Provided: ELECTRICAL ACCESS PORT AND TAMPER PROOF CAP
  • Temp Sensing Element Type: IMMERSION WELL
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,thermostatic, cataloged under National Stock Number 5930-01-155-9876, 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 Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems. Government technical data includes 23 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5930-01-155-9876
Primary Part Number21110-0
Item NameSwitch,thermostatic
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerKidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems
StatusCANCELLED
Body Length3.281 INCHES NOMINAL IN
Contact Adjustment TypeEXTERNAL DEACTUATION POINT SCREW AND EXTERNAL ACTUATION POINT SCREW
Thread Series DesignatorNPT SINGLE THREADED BUSHING
Contact Action StimulusINCREASE
Overall Diameter3.531 INCHES NOMINAL IN
Features ProvidedELECTRICAL ACCESS PORT AND TAMPER PROOF CAP
Temp Sensing Element TypeIMMERSION WELL
Contact Voltage Rating in Volts125.0 DC AT SEA LEVEL THIRD VOLTAGE
Media for Which DesignedGAS OR LIQUID
Style DesignatorCYLINDRICAL
Contact Adjustment Range+0.00 TO 250.00 ACTUATION POINT DEGREES FAHRENHEIT AND +0.00 TO 250.00 DEACTUATION POINT DEGREES FAHRENHEIT
Contact Voltage Rating in Volts250.0 DC AT SEA LEVEL SECOND VOLTAGE
Nominal Thread Size0.500 INCHES SINGLE THREADED BUSHING IN
Terminal TypeSCREW
Contact Load Current Rating500.0 MILLIAMPERES RESISTIVE LOAD THIRD VOLTAGE
Contact Load Current Rating250.0 MILLIAMPERES RESISTIVE LOAD SECOND VOLTAGE
Mounting MethodTHREADED BUSHING
Contact Load Current Rating15.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE
Contact AdjustabilityDEACTUATION POINT ADJUSTABLE AND ACTUATION POINT ADJUSTABLE
Contact Voltage Rating in Volts250.0 AC AT SEA LEVEL FIRST VOLTAGE
Width Across Flats1.125 INCHES NOMINAL IN
Thread Quantity Per Inch14 SINGLE THREADED BUSHING
Nonpile-Up Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
6125-00-510-0019413C7 INTERCHANGEABLE
Motor-Generator Assembly
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5920-00-901-5158211-100 INTERCHANGEABLE
Fuse,cartridge
Littelfuse, Inc.
5110-01-040-9836 INTERCHANGEABLE
Stripper,wire,hand
7010-01-269-3333211100 INTERCHANGEABLE
Computer System,digital
Computervision Corp
Cross-Reference Index
Part NumberManufacturer
21110-0 PRIMARY Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems (USA)
Related Parts
6125-00-510-0019INTERCHANGEABLE
MOTOR-GENERATOR ASSEMBLY
413C7
5920-00-901-5158INTERCHANGEABLE
FUSE,CARTRIDGE
211-100
5110-01-040-9836INTERCHANGEABLE
STRIPPER,WIRE,HAND
7010-01-269-3333INTERCHANGEABLE
COMPUTER SYSTEM,DIGITAL
211100

Frequently Asked Questions

What is NSN 5930-01-155-9876?

NSN 5930-01-155-9876 is a Switch,thermostatic, manufactured by Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems, classified under FSC 5930 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5930-01-155-9876?

NSN 5930-01-155-9876 has 1 cross-referenced part number: 21110-0 (Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems).

What NSN replaces 5930-01-155-9876?

There are 4 known substitutes for 5930-01-155-9876: 6125-00-510-0019, 5920-00-901-5158, 5110-01-040-9836 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21110-0?

Key specifications for 21110-0: Body Length: 3.281 INCHES NOMINAL IN; Contact Adjustment Type: EXTERNAL DEACTUATION POINT SCREW AND EXTERNAL ACTUATION POINT SCREW; Thread Series Designator: NPT SINGLE THREADED BUSHING; Contact Action Stimulus: INCREASE. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5930-01-155-9876 still in active supply?

NSN 5930-01-155-9876 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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