PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1SR2ASwitch,rotary

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5930-01-233-1881 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-233-1881 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-233-1881. Primary manufacturer part number: 1SR2A.
Features
  • Switch,rotary — FSC 5930
  • Contact Load Current Rating: 10.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
  • Individual Section Quantity: 2
  • Specification/standard Data: 81399-MIL-S-15291/1 GOVERNMENT SPECIFICATION
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Thread Class: 2B SINGLE MOUNTING FACILITY
  • Mounting Facility Circle Radius: 1.156 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Thread Quantity Per Inch: 24 SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-01-233-1881, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Active.

Technical Specifications
ParameterValue
NSN5930-01-233-1881
Primary Part Number1SR2A
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
StatusACTIVE
Contact Load Current Rating10.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
Individual Section Quantity2
Specification/standard Data81399-MIL-S-15291/1 GOVERNMENT SPECIFICATION
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Thread Class2B SINGLE MOUNTING FACILITY
Mounting Facility Circle Radius1.156 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Thread Quantity Per Inch24 SINGLE MOUNTING FACILITY
Terminal TypeTHREADED STUD
Mounting MethodBRACKET(S) AND THREADED HOLE(S) SINGLE MOUNTING FACILITY
Nominal Thread Size0.190 INCHES SINGLE MOUNTING FACILITY IN
Test Data Document81349-MIL-S-15291 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.).
Switch Actuator Positioning Increment90.0 DEGREES SINGLE ACTUATOR
Features ProvidedACTUATOR KNOB
Mounting Facility PatternFOUR POSITION CIRCULAR SINGLE MOUNTING FACILITY
Switch Contact Basic DesignNONPILE-UP NONSYMMETRICAL
Style DesignatorTAP, CIRCUIT SELECTOR
Contact Voltage Rating in Volts120.0 DC AT SEA LEVEL
Contact Voltage Rating in Volts125.0 AC AT SEA LEVEL
Contact Load Current Rating10.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Switch Actuator Indexing Position Quantity4 SINGLE ACTUATOR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5930-00-259-8951 INTERCHANGEABLE
Switch,rotary
5930-00-259-8957 INTERCHANGEABLE
Switch,rotary
5930-00-259-8959 INTERCHANGEABLE
Switch,rotary
5930-00-259-8961 INTERCHANGEABLE
Switch,rotary
5930-01-173-7330 INTERCHANGEABLE
Switch,rotary
Cross-Reference Index
Part NumberManufacturer
1SR2A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-15291/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M15291/1-001 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-S-15291/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5930-00-259-8951INTERCHANGEABLE
SWITCH,ROTARY
5930-00-259-8957INTERCHANGEABLE
SWITCH,ROTARY
5930-00-259-8959INTERCHANGEABLE
SWITCH,ROTARY
5930-00-259-8961INTERCHANGEABLE
SWITCH,ROTARY
5930-01-173-7330INTERCHANGEABLE
SWITCH,ROTARY

Frequently Asked Questions

What is NSN 5930-01-233-1881?

NSN 5930-01-233-1881 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: active.

What are the part numbers for NSN 5930-01-233-1881?

NSN 5930-01-233-1881 has 4 cross-referenced part numbers: 1SR2A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-15291/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M15291/1-001 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-S-15291/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5930-01-233-1881?

There are 5 known substitutes for 5930-01-233-1881: 5930-00-259-8951, 5930-00-259-8957, 5930-00-259-8959 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1SR2A?

Key specifications for 1SR2A: Contact Load Current Rating: 10.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL; Overall Height: 1.891 INCHES NOMINAL IN; Individual Section Quantity: 2; Specification/standard Data: 81399-MIL-S-15291/1 GOVERNMENT SPECIFICATION. 23 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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