PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-S-21604/2Switch,rotary

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5930-01-263-5027 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-263-5027 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-263-5027. Primary manufacturer part number: MIL-S-21604/2.
Features
  • Switch,rotary — FSC 5930
  • Thread Class: 2B FIRST MOUNTING FACILITY
  • Thread Class: 2A SECOND MOUNTING FACILITY A
  • Contact Switching Action: BREAKS BEFORE MAKES EACH SECTION REAR
  • Style Designator: TAP, SQUARE FRAME
  • Switch Actuator Stop Device Type: ADJUSTABLE STOP SINGLE ACTUATOR
  • Thread Quantity Per Inch: 24 FIRST MOUNTING FACILITY
  • Mounting Facility Pattern: FOUR POSITION RECTANGULAR FIRST MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-01-263-5027, 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 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5930-01-263-5027
Primary Part NumberMIL-S-21604/2
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
Thread Class2B FIRST MOUNTING FACILITY
Thread Class2A SECOND MOUNTING FACILITY A
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION REAR
Style DesignatorTAP, SQUARE FRAME
Switch Actuator Stop Device TypeADJUSTABLE STOP SINGLE ACTUATOR
Thread Quantity Per Inch24 FIRST MOUNTING FACILITY
Mounting Facility PatternFOUR POSITION RECTANGULAR FIRST MOUNTING FACILITY
Switch Actuator Indexing Position Quantity16 SINGLE ACTUATOR
Features ProvidedACTUATOR KNOB
Mounting MethodTHREADED STUD(S) SECOND MOUNTING FACILITY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) FIRST MOUNTING FACILITY
Thread Length0.438 INCHES NOMINAL SECOND MOUNTING FACILITY IN
Longest Horizontal Distance Between Mounting Centers2.300 INCHES NOMINAL FIRST MOUNTING FACILITY IN
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Precious Material and LocationROTOR AND STATOR SURFACES SILVER
Precious MaterialSILVER
Mounting Facility PatternFOUR POSITION CIRCULAR SECOND MOUNTING FACILITY
Contact Voltage Rating in Volts125.0 AC AT SEA LEVEL
Nominal Thread Size0.190 INCHES FIRST MOUNTING FACILITY IN
Nominal Thread Size0.190 INCHES SECOND MOUNTING FACILITY IN
Mounting MethodBRACKET(S) AND THREADED HOLE(S) FIRST MOUNTING FACILITY
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.).
Specification/standard Data81349-MIL-S-21604/2 GOVERNMENT SPECIFICATION
Longest Vertical Distance Between Mounting Centers2.300 INCHES NOMINAL FIRST MOUNTING FACILITY IN
Switch Actuator Positioning Increment22.5 DEGREES SINGLE ACTUATOR
Thread Series DesignatorUNEF SECOND MOUNTING FACILITY
Mounting Facility Circle Radius0.905 INCHES NOMINAL SECOND MOUNTING FACILITY IN
Throw Quantity15 EACH SECTION REAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5930-00-474-6087S3JK5 INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Electro Switch Corp
5930-00-476-2974 INTERCHANGEABLE
Switch,rotary
5930-01-052-3735 INTERCHANGEABLE
Switch,rotary
5930-01-225-1995 INTERCHANGEABLE
Switch,rotary
5930-01-225-8292 INTERCHANGEABLE
Switch,rotary
Cross-Reference Index
Part NumberManufacturer
MIL-S-21604/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-21604/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
S3JK5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5930-00-474-6087INTERCHANGEABLE
SWITCH,ROTARY
S3JK5
5930-00-476-2974INTERCHANGEABLE
SWITCH,ROTARY
5930-01-052-3735INTERCHANGEABLE
SWITCH,ROTARY
5930-01-225-1995INTERCHANGEABLE
SWITCH,ROTARY
5930-01-225-8292INTERCHANGEABLE
SWITCH,ROTARY

Frequently Asked Questions

What is NSN 5930-01-263-5027?

NSN 5930-01-263-5027 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 5930-01-263-5027?

NSN 5930-01-263-5027 has 3 cross-referenced part numbers: MIL-S-21604/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-21604/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), S3JK5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5930-01-263-5027?

There are 5 known substitutes for 5930-01-263-5027: 5930-00-474-6087, 5930-00-476-2974, 5930-01-052-3735 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-S-21604/2?

Key specifications for MIL-S-21604/2: Thread Class: 2B FIRST MOUNTING FACILITY; Thread Class: 2A SECOND MOUNTING FACILITY A; Contact Switching Action: BREAKS BEFORE MAKES EACH SECTION REAR; Style Designator: TAP, SQUARE FRAME. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5930-01-263-5027 still in active supply?

NSN 5930-01-263-5027 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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