PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M23Switch,thermostatic

Essex Group Inc Controls Div Lexington Plant · NSN 5930-00-548-3011 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-548-3011 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-548-3011. Primary manufacturer part number: M23.
Features
  • Switch,thermostatic — FSC 5930
  • Overall Diameter: 0.625 INCHES NOMINAL IN
  • Contact Voltage Rating in Volts: 125.0 AC AT SEA LEVEL SECOND VOLTAGE
  • Contact Adjustability: ACTUATION POINT NOT ADJUSTABLE
  • Contact Load Current Rating: 10.0 AMPERES RESISTIVE LOAD FOURTH VOLTAGE
  • Contact Load Current Rating: 4.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE
  • Terminal Type: SOLDER STUD
  • Contact Load Current Rating: 8.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,thermostatic, cataloged under National Stock Number 5930-00-548-3011, 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 Essex Group Inc Controls Div Lexington Plant. Government technical data includes 12 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5930-00-548-3011
Primary Part NumberM23
Item NameSwitch,thermostatic
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerEssex Group Inc Controls Div Lexington Plant
StatusCANCELLED
Overall Diameter0.625 INCHES NOMINAL IN
Contact Voltage Rating in Volts125.0 AC AT SEA LEVEL SECOND VOLTAGE
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE
Contact Load Current Rating10.0 AMPERES RESISTIVE LOAD FOURTH VOLTAGE
Contact Load Current Rating4.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE
Terminal TypeSOLDER STUD
Contact Load Current Rating8.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
Contact Stimulus Rating158.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 131.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
Contact Load Current Rating1.0 AMPERES RESISTIVE LOAD THIRD VOLTAGE
Contact Action StimulusINCREASE
Nonpile-Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Temp Sensing Element TypeINTERNAL SENSOR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3455-00-224-365709300 INTERCHANGEABLE
Cutter,milling,metal Slitting
Niagara Cutter Inc
5910-00-241-5633 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
5965-00-378-3403 INTERCHANGEABLE
Headset,electrical
2530-00-463-7676F3649 INTERCHANGEABLE
Parts Kit,hydraulic Brake Master
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
4925-00-715-90737793376 INTERCHANGEABLE
Linker-Delinker,powered
Army, United States Department of the Dba Rock Island Arsenal Jmtc
5910-00-754-7143M23 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
L3 Aviation Products, Inc. Dba L3 Technologies
4720-00-990-168111MF2512P3 INTERCHANGEABLE
Hose,preformed
Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations
5950-01-044-178230298 INTERCHANGEABLE
Transformer,synchro to Synchro a
Data Device Corp Dba Beta Transformer Technology
4130-01-373-1377 INTERCHANGEABLE
Manifold,charging and Testing,re
5962-01-376-48900N445085-1 INTERCHANGEABLE
Microcircuit,digital
National Security Agency
Cross-Reference Index
Part NumberManufacturer
M23 Essex Group Inc Controls Div Lexington Plant
12666TYPEM23 Stevens Mfg Co
292-0077-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
3455-00-224-3657INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
09300
5910-00-241-5633INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
5965-00-378-3403INTERCHANGEABLE
HEADSET,ELECTRICAL
2530-00-463-7676INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE MASTER
F3649
4925-00-715-9073INTERCHANGEABLE
LINKER-DELINKER,POWERED
7793376
5910-00-754-7143INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
M23
4720-00-990-1681INTERCHANGEABLE
HOSE,PREFORMED
11MF2512P3
5950-01-044-1782INTERCHANGEABLE
TRANSFORMER,SYNCHRO TO SYNCHRO A
30298
4130-01-373-1377INTERCHANGEABLE
MANIFOLD,CHARGING AND TESTING,RE
5962-01-376-4890INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
0N445085-1
6250-01-418-0082INTERCHANGEABLE
LAMPHOLDER
M23
6680-01-439-8371INTERCHANGEABLE
INDICATOR,OXYGEN FLOW
M-23

Frequently Asked Questions

What is NSN 5930-00-548-3011?

NSN 5930-00-548-3011 is a Switch,thermostatic, manufactured by Essex Group Inc Controls Div Lexington Plant, classified under FSC 5930 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5930-00-548-3011?

NSN 5930-00-548-3011 has 3 cross-referenced part numbers: M23 (Essex Group Inc Controls Div Lexington Plant), 12666TYPEM23 (Stevens Mfg Co), 292-0077-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 5930-00-548-3011?

There are 12 known substitutes for 5930-00-548-3011: 3455-00-224-3657, 5910-00-241-5633, 5965-00-378-3403 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M23?

Key specifications for M23: Overall Diameter: 0.625 INCHES NOMINAL IN; Contact Voltage Rating in Volts: 125.0 AC AT SEA LEVEL SECOND VOLTAGE; Contact Adjustability: ACTUATION POINT NOT ADJUSTABLE; Contact Load Current Rating: 10.0 AMPERES RESISTIVE LOAD FOURTH VOLTAGE. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5930-00-548-3011 still in active supply?

NSN 5930-00-548-3011 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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