PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121909LMSwitch,rotary

Electro Switch Corp. Dba Electro Switch Corp · NSN 5930-00-758-6054 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-758-6054 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-758-6054. Primary manufacturer part number: 121909LM.
Features
  • Switch,rotary — FSC 5930
  • Individual Section Quantity: 9
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Throw Quantity: 1 FIFTH SECTION FRONT
  • Throw Quantity: 2 FIRST SECTION FRONT
  • Mounting Facility Circle Radius: 1.156 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Throw Quantity: 1 SEVENTH SECTION FRONT
  • Thread Class: 2B SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-00-758-6054, 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 Electro Switch Corp. Dba Electro Switch Corp. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-758-6054
Primary Part Number121909LM
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerElectro Switch Corp. Dba Electro Switch Corp
StatusACTIVE
Individual Section Quantity9
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Throw Quantity1 FIFTH SECTION FRONT
Throw Quantity2 FIRST SECTION FRONT
Mounting Facility Circle Radius1.156 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Throw Quantity1 SEVENTH SECTION FRONT
Thread Class2B SINGLE MOUNTING FACILITY
Throw Quantity2 SECOND SECTION FRONT
Mounting MethodBRACKET(S) AND THREADED HOLE(S) SINGLE MOUNTING FACILITY
Throw Quantity1 NINTH SECTION FRONT
Throw Quantity1 THIRD SECTION FRONT
Switch Actuator Indexing Position Quantity4 SINGLE ACTUATOR
Contact Voltage Rating in Volts250.0 HIGHEST AC VOLTAGE RATING AT SEA LEVEL
Contact Switching ActionMAKES BEFORE BREAKS, BREAKS BEFORE MAKES EACH SECTION FRONT
Throw Quantity1 EIGHTH SECTION FRONT
Style DesignatorTAP, CIRCUIT SELECTOR
Contact Load Current Rating10.0 AMPERES RESISTIVE LOAD LOWEST AC VOLTAGE RATING AT SEA LEVEL
Thread Quantity Per Inch24 SINGLE MOUNTING FACILITY
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD HIGHEST AC VOLTAGE RATING AT SEA LEVEL
Throw Quantity1 SIXTH SECTION FRONT
Terminal TypeTAB W/SCREW
Contact Voltage Rating in Volts125.0 LOWEST AC VOLTAGE RATING AT SEA LEVEL
Mounting Facility PatternFOUR POSITION CIRCULAR SINGLE MOUNTING FACILITY
Pole Quantity1 EACH SECTION FRONT
Features ProvidedACTUATOR KNOB
Throw Quantity1 FOURTH SECTION FRONT
Nominal Thread Size0.190 INCHES SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5999-00-090-474521253 INTERCHANGEABLE
Cap,electrical
Vse Aviation, Inc.
5360-00-809-187982325 INTERCHANGEABLE
Spring,helical,compression
Hydro-Aire Aerospace Corp
5305-00-847-3897823-25 INTERCHANGEABLE
Screw,machine
Andrea Systems Llc
5935-00-874-012482-325 INTERCHANGEABLE
Connector,plug,electrical
Amphenol Corporation Div Amphenol Rf
2920-01-099-340240068500 INTERCHANGEABLE
Glow Plug
Hatz Diesel of America Inc
3120-01-432-0917 INTERCHANGEABLE
Bushing,sleeve
3120-01-462-8067741101A00 INTERCHANGEABLE
Bushing,sleeve
L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
82325 Cooper Industries Inc Cooper Distribution Equipment Div (USA)
121909LM PRIMARY Electro Switch Corp. Dba Electro Switch Corp (USA)
Related Parts
5999-00-090-4745INTERCHANGEABLE
CAP,ELECTRICAL
21253
5360-00-809-1879INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
82325
5305-00-847-3897INTERCHANGEABLE
SCREW,MACHINE
823-25
5935-00-874-0124INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
82-325
2920-01-099-3402INTERCHANGEABLE
GLOW PLUG
40068500
3120-01-432-0917INTERCHANGEABLE
BUSHING,SLEEVE
3120-01-462-8067INTERCHANGEABLE
BUSHING,SLEEVE
741101A00

Frequently Asked Questions

What is NSN 5930-00-758-6054?

NSN 5930-00-758-6054 is a Switch,rotary, manufactured by Electro Switch Corp. Dba Electro Switch Corp, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-758-6054?

NSN 5930-00-758-6054 has 2 cross-referenced part numbers: 82325 (Cooper Industries Inc Cooper Distribution Equipment Div), 121909LM (Electro Switch Corp. Dba Electro Switch Corp).

What NSN replaces 5930-00-758-6054?

There are 7 known substitutes for 5930-00-758-6054: 5999-00-090-4745, 5360-00-809-1879, 5305-00-847-3897 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 121909LM?

Key specifications for 121909LM: Overall Length: 4.307 INCHES NOMINAL IN; Overall Height: 2.950 INCHES NOMINAL IN; Individual Section Quantity: 9; Overall Width: 2.950 INCHES NOMINAL IN. 30 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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