PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-S-21604/3Switch,rotary

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5930-00-581-3786 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-581-3786 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-581-3786. Primary manufacturer part number: MIL-S-21604/3.
Features
  • Switch,rotary — FSC 5930
  • Contact Voltage Rating in Volts: 125.0 AC AT SEA LEVEL
  • Switch Contact Basic Design: NONPILE-UP SYMMETRICAL
  • Nominal Thread Size: 0.469 INCHES SINGLE MOUNTING FACILITY IN
  • Switch Actuator Positioning Increment: 45.0 DEGREES SINGLE ACTUATOR
  • Specification/standard Data: 81349-MIL-S-21604/3 GOVERNMENT SPECIFICATION
  • Contact Switching Action: BREAKS BEFORE MAKES EACH SECTION FRONT
  • Mounting Method: THREADED BUSHING SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-00-581-3786, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 6 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
NSN5930-00-581-3786
Primary Part NumberMIL-S-21604/3
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Contact Voltage Rating in Volts125.0 AC AT SEA LEVEL
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Nominal Thread Size0.469 INCHES SINGLE MOUNTING FACILITY IN
Switch Actuator Positioning Increment45.0 DEGREES SINGLE ACTUATOR
Specification/standard Data81349-MIL-S-21604/3 GOVERNMENT SPECIFICATION
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION FRONT
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Individual Section Quantity5
First Flat Length0.438 INCHES NOMINAL SINGLE ACTUATOR IN
Knob Manufacturer Code80064
Thread Length0.469 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Flat Height0.188 INCHES NOMINAL SINGLE ACTUATOR IN
Switch Actuator Stop Device TypeADJUSTABLE STOP SINGLE ACTUATOR
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Throw Quantity7 EACH SECTION FRONT
Features ProvidedACTUATOR KNOB
Terminal TypeTAB W/SCREW
Knob Manufacturer Part Number9000S6202-74000-2
Shaft Length0.875 INCHES NOMINAL SINGLE ACTUATOR IN
Switch Actuator Indexing Position Quantity8 SINGLE ACTUATOR
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Shaft TypeROUND, FLATTED, THREADED HOLE SINGLE ACTUATOR
Test Data Document81349-MIL-S-21604 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Overall Diameter2.000 INCHES NOMINAL IN
Thread Series DesignatorUNS SINGLE MOUNTING FACILITY
Pole Quantity1 EACH SECTION FRONT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5930-00-065-2083 INTERCHANGEABLE
Switch,rotary
5930-00-065-2084 INTERCHANGEABLE
Switch,rotary
5930-00-402-1430 INTERCHANGEABLE
Switch,rotary
5930-00-432-7641 INTERCHANGEABLE
Switch,rotary
5930-00-581-3783 INTERCHANGEABLE
Switch,rotary
5930-00-581-3784 INTERCHANGEABLE
Switch,rotary
5930-00-581-3785 INTERCHANGEABLE
Switch,rotary
5930-00-581-3788 INTERCHANGEABLE
Switch,rotary
5930-00-581-3791 INTERCHANGEABLE
Switch,rotary
5930-00-752-2838 INTERCHANGEABLE
Switch,rotary
Cross-Reference Index
Part NumberManufacturer
MIL-S-21604/3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
635J644H33 Westinghouse Electric Corp Control Business Unit
S3JL5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
33305A Electro Switch Corp. Dba Electro Switch Corp (USA)
5930PL0944128 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MIL-DTL-21604/3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
9000S6202-74422UNIT8 Naval Ship Systems Command (USA)
B109766 Electro Switch Corp. Dba Electro Switch Corp (USA)
438-6404478 FIND NO 13 Naval Sea Systems Command (USA)
211055301 Naval Sea Systems Command (USA)
Related Parts
5930-00-065-2083INTERCHANGEABLE
SWITCH,ROTARY
5930-00-065-2084INTERCHANGEABLE
SWITCH,ROTARY
5930-00-402-1430INTERCHANGEABLE
SWITCH,ROTARY
5930-00-432-7641INTERCHANGEABLE
SWITCH,ROTARY
5930-00-581-3783INTERCHANGEABLE
SWITCH,ROTARY
5930-00-581-3784INTERCHANGEABLE
SWITCH,ROTARY
5930-00-581-3785INTERCHANGEABLE
SWITCH,ROTARY
5930-00-581-3788INTERCHANGEABLE
SWITCH,ROTARY
5930-00-581-3791INTERCHANGEABLE
SWITCH,ROTARY
5930-00-752-2838INTERCHANGEABLE
SWITCH,ROTARY
5930-00-752-2839INTERCHANGEABLE
SWITCH,ROTARY
5930-00-752-2841INTERCHANGEABLE
SWITCH,ROTARY

Frequently Asked Questions

What is NSN 5930-00-581-3786?

NSN 5930-00-581-3786 is a Switch,rotary, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5930 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5930-00-581-3786?

NSN 5930-00-581-3786 has 10 cross-referenced part numbers: MIL-S-21604/3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 635J644H33 (Westinghouse Electric Corp Control Business Unit), S3JL5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 33305A (Electro Switch Corp. Dba Electro Switch Corp), 5930PL0944128 (Jednolity Indeks Materialowy - Uniform Material Index) and 5 more.

What NSN replaces 5930-00-581-3786?

There are 12 known substitutes for 5930-00-581-3786: 5930-00-065-2083, 5930-00-065-2084, 5930-00-402-1430 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-S-21604/3?

Key specifications for MIL-S-21604/3: Contact Voltage Rating in Volts: 125.0 AC AT SEA LEVEL; Switch Contact Basic Design: NONPILE-UP SYMMETRICAL; Nominal Thread Size: 0.469 INCHES SINGLE MOUNTING FACILITY IN; Switch Actuator Positioning Increment: 45.0 DEGREES SINGLE ACTUATOR. 27 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5930-00-581-3786 still in active supply?

NSN 5930-00-581-3786 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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