PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121904MLSwitch,rotary

Electro Switch Corp. Dba Electro Switch Corp · NSN 5930-00-201-2581 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-201-2581 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-201-2581. Primary manufacturer part number: 121904ML.
Features
  • Switch,rotary — FSC 5930
  • Individual Section Quantity: 4
  • Terminal Type: TAB W/SCREW
  • Switch Actuator Positioning Increment: 90.0 DEGREES SINGLE ACTUATOR
  • Knob Manufacturer Code: 82121
  • Thread Quantity Per Inch: 24 SINGLE MOUNTING FACILITY
  • Shaft Diameter: 0.250 INCHES NOMINAL SINGLE ACTUATOR IN
  • Contact Voltage Rating in Volts: 125.0 AC AT SEA LEVEL
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-00-201-2581, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-201-2581
Primary Part Number121904ML
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerElectro Switch Corp. Dba Electro Switch Corp
StatusACTIVE
Individual Section Quantity4
Terminal TypeTAB W/SCREW
Switch Actuator Positioning Increment90.0 DEGREES SINGLE ACTUATOR
Knob Manufacturer Code82121
Thread Quantity Per Inch24 SINGLE MOUNTING FACILITY
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Contact Voltage Rating in Volts125.0 AC AT SEA LEVEL
Contact Load Current Rating10.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Mounting Facility PatternFOUR POSITION CIRCULAR SINGLE MOUNTING FACILITY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Shaft Length0.938 INCHES NOMINAL SINGLE ACTUATOR IN
Features ProvidedACTUATOR KNOB
Nominal Thread Size0.190 INCHES SINGLE MOUNTING FACILITY IN
Shaft TypeROUND SINGLE ACTUATOR
Mounting Facility Circle Radius1.469 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Switch Actuator Indexing Position Quantity4 SINGLE ACTUATOR
Knob Manufacturer Part Number8269
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-136-7398 INTERCHANGEABLE
Gasket
4820-00-155-50408269 INTERCHANGEABLE
Seat,valve
Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
5305-00-353-94448269 INTERCHANGEABLE
Setscrew
Cummins Inc.
4720-00-518-6757F3700 INTERCHANGEABLE
Hose Assembly,nonmetallic
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
2990-00-778-00313866266 INTERCHANGEABLE
Muffler,exhaust
General Motors Llc Dba General Motors Llc
5310-00-835-25258269 INTERCHANGEABLE
Nut,plain,hexagon
Triumph Controls, Llc Dba Triumph Controls, Llc
5998-00-948-50912684519-00 INTERCHANGEABLE
Circuit Card Assembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5930-01-107-0648 INTERCHANGEABLE
Switch,rotary
5340-01-295-36278269 INTERCHANGEABLE
Standoff,threaded,spacing
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4910-01-367-20418270 INTERCHANGEABLE
Jack,dolly Type,pneumatic
Niwot Corporation Dba Specialty Products Company Div Specialty Products Company
Cross-Reference Index
Part NumberManufacturer
121904ML PRIMARY Electro Switch Corp. Dba Electro Switch Corp (USA)
8269 Electro Switch Corp. Dba Electro Switch Corp (USA)
Related Parts
5330-00-136-7398INTERCHANGEABLE
GASKET
4820-00-155-5040INTERCHANGEABLE
SEAT,VALVE
8269
5305-00-353-9444INTERCHANGEABLE
SETSCREW
8269
4720-00-518-6757INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
F3700
2990-00-778-0031INTERCHANGEABLE
MUFFLER,EXHAUST
3866266
5310-00-835-2525INTERCHANGEABLE
NUT,PLAIN,HEXAGON
8269
5998-00-948-5091INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
2684519-00
5930-01-107-0648INTERCHANGEABLE
SWITCH,ROTARY
5340-01-295-3627INTERCHANGEABLE
STANDOFF,THREADED,SPACING
8269
4910-01-367-2041INTERCHANGEABLE
JACK,DOLLY TYPE,PNEUMATIC
8270
1680-01-486-5742INTERCHANGEABLE
FLEXSHIELD TAPE,AIR
EL-8269-8
4820-01-561-7339INTERCHANGEABLE
POST,PUSHER
08269

Frequently Asked Questions

What is NSN 5930-00-201-2581?

NSN 5930-00-201-2581 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 5930-00-201-2581?

NSN 5930-00-201-2581 has 2 cross-referenced part numbers: 121904ML (Electro Switch Corp. Dba Electro Switch Corp), 8269 (Electro Switch Corp. Dba Electro Switch Corp).

What NSN replaces 5930-00-201-2581?

There are 12 known substitutes for 5930-00-201-2581: 5330-00-136-7398, 4820-00-155-5040, 5305-00-353-9444 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 121904ML?

Key specifications for 121904ML: Individual Section Quantity: 4; Terminal Type: TAB W/SCREW; Switch Actuator Positioning Increment: 90.0 DEGREES SINGLE ACTUATOR; Knob Manufacturer Code: 82121. 17 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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